Innovator AW3-PJT Page 185 Manual Download

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1. Inrush current protecting area : It prevents an instant inrush of current generated in condenser

when plug in.

2. PCB Power Bus : power bus (Hybrid IC). It supplies DC15V and 5V to MICOM.

3. Current detecting area : It detects the current from the SHUNT resistance and controls PWM

DUTY.

4. COMP operating Signal area : It receives COMP operating signal from Main PCB and conduct it.

5. BOOTSTRAP live part : Charging circuit that 1GBT of SPM can On/Off securely.

6. IPM : The output circuit for operating COMP of the Refrigerator.

6 -2 . PCB La yout w it h pa r t posit ion (SM PS Boa rd)

To do list

6 . PCB Dia gra m

https://appliancetechmanuals.com

Summary of Contents for AW3-PJT

Page 1: ...3 PJT New product training for refrigerator RF4287HA BASIC RF4287HA MODEL NAME RF4287HARS RF4287HAPN RF4287HAWP RF4287HABP MODEL CODE RF4287HARS XAA RF4287HAPN XAA RF4287HAWP XAA RF4287HABP XAA RF4287HARS XAC https appliancetechmanuals com ...

Page 2: ...uction of Function 3 Full disassembly and assembly 4 Check the installation status 5 Self Diagnosis Trouble Shooting 6 PCB Diagram 7 Wiring Diagram 8 Schematic Diagram 9 Reference Information Contents https appliancetechmanuals com ...

Page 3: ...pendent system the freezer and the refrigerator are cooled individually as required and are therefore more efficient Food odor from the refrigerator does not affect food in the freezer due to separate air flow circulation Flex Zone The Flex Zone is a full width independent mid drawer with adjustable temperature control A new ly developed SAMSUNG bottom mount freezer in 2009 has the follow ing char...

Page 4: ...tchen Two Lever Dispenser Two lever dispenser can be get ice or water easily Secure Auto Close Door System Cool tight doors Energy saving Preventing sweat on fridge doors A new ly developed SAMSUNG bottom mount freezer in 2009 has the follow ing characteristics 1 1 Introduction of main Function To do list https appliancetechmanuals com ...

Page 5: ...ighting The lighting helps you find groceries Easier by lighting down when you open Mid drawer Flex zone and freezer door Smart Divider Easy rail partition can divide off 4 independent space easily The rail partition allow you to divide the space of the convertible room easier 1 1 Introduction of main Function To do list Changing Items https appliancetechmanuals com ...

Page 6: ...pers for changing filter conveniently without removing items from Refrigerator Touch Sensor Lighting The display change more wider and apply Blue LED lighting And Touch Sensor Lighting make the refrigerator graceful 1 1 Introduction of main Function To do list Changing Items https appliancetechmanuals com ...

Page 7: ...ght Door Closer Dis Door Bins Cap Chute Vertical Hinged Section Slide Shelf Mid Door Bins Vegetable Fruit Drawers Water Filter Left Door Bins Light FF Ice Maker Right Door Bins Tempered glass shelves Light Quick Space Glass Shelf Cover Veg Light Convertible Room Auto Pull Out Drawer Freezer Drawer Bin https appliancetechmanuals com ...

Page 8: ... Efficiency of volume 60 Weight Set 362 4 Pounds 164kg Packing 402 1 Pounds 182kg Packing Width 38 5 8 Inch 980mm Depth 39 3 8 Inch 1001mm Height 75 5 8 Inch 1923mm Compressor Reciprocate Rated Voltage and Frequency AC 115V 60Hz Refrigerant R 134a Foaming Agent C Pentane Refrigerant Input Amount 5 64 oz 160g Type Refrigerator Indirect Cooling Method Refrigerator Motor Rated Consumption Power 140W ...

Page 9: ...lack I Black Real STS Noble STS Versailles Stainless Creamy STS White Snow White Snow White Snow White Platinum STS Noble STS Stainless Platinum Creamy STS 1 3 Model Specification Specification Chart 1 Product Information To do list https appliancetechmanuals com ...

Page 10: ... 0 82mm x 3500mm F 0 032 x 118 0 82mm x 3500mm Refrigerant R134a Model Temperature Selection ON Ԭ OFF Ԭ THERMISTOR F SENSOR 502AT 8Ԭ 22Ԩ 5Ԭ 20Ԩ 11Ԭ 24Ԩ 2Ԭ 19Ԩ 1Ԭ 17Ԩ 5Ԭ 21Ԩ 8Ԭ 13Ԩ 11Ԭ 12Ԩ 5Ԭ 15Ԩ Model Temperature Selection ON Ԭ OFF Ԭ THERMISTOR R SENSOR 502AT 29Ԭ 1Ԩ 32Ԭ 0Ԩ 26Ԭ 3Ԩ 42Ԭ 5Ԩ 45Ԭ 7Ԩ 39Ԭ 4Ԩ Components for Freezer 1 3 Model Specification Specification Chart 1 Product Information To do lis...

Page 11: ...e REF 6 11 hr vary according to the conditions used Pause time 12 1 min F Defrost Sensor Model THERMISTOR 502AT SPEC 5 0 at 77Ԭ 25Ԩ F Bimetal thermo Protector Rated AC 125V 10A Operating temperature Off 140Ԭ 60Ԩ On 104Ԭ 40Ԩ F R Fuse Rated AC 250V 10A Operating temperature Off 230Ԭ 110Ԩ Defrost Cycle Fuse 1 3 Model Specification Specification Chart 1 Product Information To do list Refrigerator Defr...

Page 12: ...E AC 120V 7W Damper DC 12V 1W Over load Relay Models 4TM445PHBYY 82 Temp ON 257 41Ԭ 125 5Ԩ Temp OFF 156 2 48 2Ԭ 69 9Ԩ Rated Voltage AC 115V 60Hz Motor BLDC FRE DC12V FDQT06SS3 Motor BLDC ICE ROOM DC12V DREP5020LB Motor BLDC REF DC12V FDQT06SS3 Motor BLDC CIRCUIT DC12V FDQT04SS2 Motor DAMPER PANTRY DC12V NSBY001TD1 Lamp LED REF DC12V 290 380mA Electric Components 1 3 Model Specification Specificati...

Page 13: ...2V 95 145mA Lamp LED REF Eva DC 12V 65 95mA Door Switch FRE AC 125V 1 5A 1EA REF Flex DC200V 1 5A MS 406 SS 01 2EA REF ICE ROOM 125 250V 11A EMB606 Power cord AC125V 15A Earth Screw BSBN BRASS SCREW Electric Components 1 3 Model Specification Specification Chart 1 Product Information To do list https appliancetechmanuals com ...

Page 14: ...1 4 Dimensions of Refrigerator Inches 1 Product Information To do list https appliancetechmanuals com ...

Page 15: ...ator Evaporator Freezer Evaporator Suction Pipe Compressor 2 Compressor Condenser Hot Pipe Back Cluster Pipe Dryer Fre Capillary Tube Freezer Evaporator Suction Pipe Compressor 1 5 Refrigerant Route in Refrigeration cycle 1 Product Information To do list https appliancetechmanuals com ...

Page 16: ...Refrigerator Freezer 1 6 Cooling Air Circulation 1 Product Information To do list Flex Zone https appliancetechmanuals com ...

Page 17: ...1 7 Principle Of Freezer 1 Product Information To do list https appliancetechmanuals com ...

Page 18: ...type All Pipes effective for radiating heat are formed in the right left and front side of refrigerator with hard urethanes and radiate heat through the whole surfaces of cabinet to ambient air Install the condenser on the outside of the product An old model Make them cluster at the lower part of product and radiate heat manually by fan Radiate condensed potential heat up to liquefy completely and...

Page 19: ... on the 2M of thin and long copper pipe wall resistance Evaporator 1 Role As the low pressure liquid refrigerant flowed from capillary absorbs heat inside of the refrigerator it becomes low pressure gas and refrigerate the foods 2 Theory The low pressure refrigerant flowed to evaporator operates cooling which takes ambient evaporated potential heat with maintaining the evaporation up to evaporate ...

Page 20: ... the gap between the outside of rotor electric attached on the shaft rotation axis and the inside of cylinder and compresses C Centrifugal Type 3 Please insert the explanation of inverter comp operation theory Dryer 1 Role Absorb the moisture from the refrigerant that refrigeration cycle circulates and eliminate the foreign substance 2 Structure If even some moisture is included refrigerant is imp...

Page 21: ...se of condensed temperature Increase of temperature Decrease of cooling efficiency Shorten the life by friction between oil and foreign substance in the compressor Accumulator 1 Role To send a pure refrigerant gas to compressor by removing completely the refrigerant liquid from evaporator If a refrigerant liquid go into the compressor overload is occurred 1 Product Information 1 8 1 Operation theo...

Page 22: ...Condenser Fre Hot Pipe Ref Hot Pipe Flex Hot Pipe Cluster Rear 3Way Valve Ref Capillary Tube Ref Eva Connected Capillary Fre Capillary Tube Fre Eva Suction Pipe Accumulator 1 8 2 Refrigeration Cycle Type To do list https appliancetechmanuals com ...

Page 23: ... desired temperature This icon will light up when you press the Power Freeze button Power Freeze is great when you need a lot of ice It can be hepful if you need to quickly freeze easily spoiled items or if the temperature in the freezer has warmed dramatically For example if the door was left open When you have enough ice just press the same button again to cancel the Power Freeze mode After 2 an...

Page 24: ...you close the door Initially the Alarm is set to on Lighting Button Press the Lighting button to turn on the Dispenser LED lamp This icon will light up when you press the Lighting button In this case the dispenser light under the display will be on constantly If you would like the dispenser light to come on only when using the dispenser turn the Lighting mode off 2 Instruction of Function 2 1 Digi...

Page 25: ...If you want to cancel the Power Cool mode just press the same button again After 2 and a half hours Power Cool mode will turn off automatically to decrease energy consumption Child Lock Button Press the Child Lock button not to use the Display panel or Dispenser functions This icon will light up when you press the Lock button In this case you won t be able to use the control panel If you press the...

Page 26: ...n off to save on water and energy consumption Crushed Button Press the Cubed or Crushed button to select the type of ice you want dispensed Each time you press the button the cubed and crushed ice modes alternate and the Cubed or Crushed ice icon lights up indicating your selection If you don t need ice turn the function off to save on water and energy consumption 2 Instruction of Function 2 1 Dig...

Page 27: ...ent temp Operation Above 66Ԭ 19 C Condenser Fan is ON as soon as the compressor is on 61Ԭ 16 C 65Ԭ 18 C Condenser Fan is ON with 5 minutes delay from the compressor on Below 60Ԭ 15 C Condenser Fan is OFF regardless of the compressor operation 2 2 C Fan Motor Delay Function of the Machine Compartment 2 Instruction of Function To do list https appliancetechmanuals com ...

Page 28: ...n the ice bucket 1 Ice maker parts Duct Ice Maker Blade Ice Guide Guide Ice Full Cover Front Outer Support Ice Maker Cover Front Inner AL Tray Blade Ice Scoop Geared Motor Hall IC PBA Test button 2 3 Ice Maker Function 2 Instruction of Function To do list https appliancetechmanuals com ...

Page 29: ... back of bucket If the back of bucket is touched the guide ice of ice maker the ice maker will not make ice any more because of a ice full signal 2 3 It takes around 6 hours to harvest a first ice and throw away 2 3 times of these ice to make sure the supplied water clean SUPT ICE MAKER ICE MAKER KIT Push the bucket back fully so that the lever should not be pushed up 2 3 Ice Maker Function 2 Inst...

Page 30: ...temperature is maintained lower than 32Ԭ 0 C for 5 seconds water is supplied It will remain until the temperature of sensor drop down to 18 5F 3 5 If the temperature is maintained lower than 18 5Ԭ 7 5 C for 5 seconds and the ice full sensor is off position the blade ice scoop starts to rotate to scoop ice cubes out Leveling S W Ice full S W Judgement MICOM PORT ON LOW ON LOW waiting until freezing...

Page 31: ...option is selected by Ice Type button the ice making process will cease 5 2 When the ice making process ceases the final state will be the ice tray with supplied water 5 3 When Cubed or Crushed option is selected again the control board will check an accumulated time period After making it 38 minutes and when the ice tray temperature is acceptable ice scooping process will begin 7 Functions when t...

Page 32: ... mode 2 There is no information about Cooling off mode in Owners manual Since it is not for consumers but some models have a label attached on display So if cooling off is performed and the label is detached No one knows about this function Operation 1 With Cooling off mode If both compartment sensors detect the room temperature higher than 65 C this mode will be automatically canceled and return ...

Page 33: ...for over 10 minutes Micom in Main PBA will turn the lamp off but once you close open the lamp will be on 2 BIMETAL Control If the temperature around of fridge lamp is over 140Ԭ the BIMETAL 140Ԭ OFF 104ԬON around lamps will turn the lamp off According to UL250 Section 9 16 Distortion Test Lamp will be off after 18 minutes of Door opening and It won t be on unless BIMETAL temperature reaches to 104Ԭ...

Page 34: ... the temperature number blinks Display blinks in case of product failure Defrost failure Fan failure Refrigerant leakage A failure used for a certain time Blinks in case of opening door for a long time Opening door for a long time when cleaning and storing foods R Display setting temperature usually If inner temperature of refrigerator rises more than 59 or so and it passes 12hrs the temperature n...

Page 35: ... rating plate This provides the best performance and also prevents overloading house wiring circuits which could cause a fire hazard from overheated wires Do not install the refrigerator in a damp place or place where it may come in contact with water Deteriorated insulation of electrical parts may cause an electric shock or fire The refrigerator must be grounded You must ground the refrigerator t...

Page 36: ... Flat Head Driver Use for assembling and disassembling of Home Bar Dispenser Deli Cartessen Box Main PBA etc Socket Wrench Ø10mm Use for assembling and disassembling of Door Hinge Required Tools 3 Full disassembly and assembly 3 1 Precaution To do list https appliancetechmanuals com ...

Page 37: ...he 3 screws holding down the Top Table and remove the Top Table 2 3 Disconnect the electrical connector 3 above the upper left door hinge To disconnect the connector 3 more easily press the end of the hook 4 and pull connector 3 Full disassembly and assembly 3 2 Refrigerator Door To do list Be careful not to scratch or break the parts https appliancetechmanuals com ...

Page 38: ...t door hinge With a Philips head screwdriver remove the ground screws 7 and remove the 3 hex head bolts 8 5 2 Right door hinge At first disconnect the LED housing 9 and with a Philips head screwdriver remove the ground screws 7 and remove the 3 hex head bolts 8 3 Full disassembly and assembly 3 2 Refrigerator Door To do list https appliancetechmanuals com ...

Page 39: ...e two screws 10 attatched to the lower left and right door hinges With a wrench 10mm remove the 2 flat head screws 11 attatched to the lower left and right door hinges Remove the lower left and right door hinges 12 3 Full disassembly and assembly 3 2 Refrigerator Door To do list Be careful not to drop the door https appliancetechmanuals com ...

Page 40: ... Descriptive Picture Door Handle Fridge 1 Disassemble the door handles by sliding them up straight 2 Remove the cover vinyl of door 3 Full disassembly and assembly 3 3 Door Handle To do list https appliancetechmanuals com ...

Page 41: ... the Cap Door with a flat blade screwdriver 2 Remove 4 screws 3 Lift up the handle to have the Slider Handle Fre 1 pushed back 3 Full disassembly and assembly 3 4 Door Handle Freezer To do list Be careful not to scratch or break the parts https appliancetechmanuals com ...

Page 42: ...le Fre 1 pushed back screw up at the hole 5 Remove the door handle by lifting it up Remove the 4 Fixer Handle Fre 2 by using the flat blade screwdriver 6 Remove the door handle by lifting it up 3 Full disassembly and assembly 3 4 Door Handle Freezer To do list https appliancetechmanuals com ...

Page 43: ...e Refrigerator Light 1 Remove the lamp cover by pushing a flat blade screwdriver Into the hooks behind and pull them out 2 Remove 3 screws And separate the LED housing Be careful not to scratch or break the parts Before doing the above make sure that the unit is plugged out https appliancetechmanuals com ...

Page 44: ... display cover 2 Remove the display cover by pushing it to the right side and pulling it up 3 Disengage the housing connect of display cover 4 Remove 4 screws of coverdisplay 3 Full disassembly and assembly 3 6 Cover Display Water Dispenser To do list https appliancetechmanuals com ...

Page 45: ...ispenser 1 Disengage the Housing Connectors by pushing a flatblade screwdriver 2 Remove 2 screws of the Case Ice Route Assy 3 Pull the Case Ice Route Assy 3 Full disassembly and assembly 3 7 Water dispenser To do list https appliancetechmanuals com ...

Page 46: ...be assembled inside of hose Otherwise assemble cannot be accomplished 5 When assembling Cover isplay first insert it from leftside and then assemble to rightside Check the wire inside and knock the display into the Case dispenser 3 Full disassembly and assembly 3 7 Water dispenser To do list hose hose https appliancetechmanuals com ...

Page 47: ...fting the front part of the shelf up and pulling it out Part name How to do Descriptive Picture Foldable Glass Shelf Remove 2 screws of the Folderble Glass Shelf 3 Full disassembly and assembly 3 8 Glass Shelf 3 9 Foldable Glass Shelf To do list https appliancetechmanuals com ...

Page 48: ...art and lifting it up 2 Lift up the vegetable fruit shelf slightly with the both side of snap fits are pressed Refer to the picture 2 Remove the vegetable fruit drawer shelf by pulling it out Refer to the picture 3 Full disassembly and assembly 3 10 Vegetable Fruit Draw ers Shelf To do list https appliancetechmanuals com ...

Page 49: ...mbling the Water Tube take out the compressor cover 1 Remove the water valve fixed by the screw 2 Remove the tube clip 3 and disconnect the water hose by pushing the fiting apart 3 Remove the tube clip 4 and disconnect the valve hose from Water Valve 3 Full disassembly and assembly 3 11 Water Valve To do list https appliancetechmanuals com ...

Page 50: ...Fixer hose 5 and disconnect the dispenser hose from Water Valve 5 Disconnect the 2 Housing 6 beside Condenser 7 6 Check the Water Valve 8 If it is not good you must change it 3 Full disassembly and assembly 3 11 Water Valve To do list https appliancetechmanuals com ...

Page 51: ...r Filter Refer to the Vegetable Fruit Shelf 1 Remove 2 screws 2 a Disconnect the water fixer tube 1 on left top table Refer to the Refrigerator door push the flat blade driver between fixer tube 1 and tube fitting 2 b Disconnect the water tube 3 by pulling the tube fitting 2 3 Full disassembly and assembly 3 12 Case Water Filter To do list https appliancetechmanuals com ...

Page 52: ... Descriptive Picture Case Water Filter 3 Turn the refrigerator back and remove 5 screws and lose 5 hoses 4 Pull the hose out 3 Full disassembly and assembly To do list 3 12 Case Water Filter https appliancetechmanuals com ...

Page 53: ...ive Picture Case Water Filter 5 Pull the two hose out from the water valve Refer to the Water Valve 5 Pick the Case Water Filter out 3 Full disassembly and assembly To do list 3 12 Case Water Filter https appliancetechmanuals com ...

Page 54: ...nk Before disassembling the Water Tank take the water filter 1 and water tray 2 out 1 Remove 2 screws beside 2 a Lose the hooks by pushing the flat blade driver 3 Full disassembly and assembly 3 13 Water Tank To do list https appliancetechmanuals com ...

Page 55: ...Picture Water Tank 2 b Lose the hooks by pushing the flat blade driver 3 Cut the sponge stick on the Case Water tank and divide Case Water Tank 3 Full disassembly and assembly 3 13 Water Tank To do list https appliancetechmanuals com ...

Page 56: ...e clips 3 and disconnect the water tank hoses by pulling the fitting tube 5 Be careful when you connect the hoses White hoses 4 Go to the In mark Other hoses 5 go to the out mark 3 Full disassembly and assembly 3 13 Water Tank To do list https appliancetechmanuals com ...

Page 57: ...ve the 1 screw under the water filter case and take off the cover damper 2 Disengage 2 housing connector 3 Take off the Motor Damper by pulling a flat blade screwdriver 3 Full disassembly and assembly 3 14 Motor Damper To do list https appliancetechmanuals com ...

Page 58: ...ter Disassembly 1 Turn the water filter count clockwise Refer to the picture 2 Remove the water filter by pulling it Refer to the picture 3 Full disassembly and assembly 3 15 Water Filter Assembly Disassembly To do list https appliancetechmanuals com ...

Page 59: ...ive Picture Water Filter Assembly 1 Push the water filter directly 2 Turn the water filter clockwise until it locked 3 Full disassembly and assembly 3 15 Water Filter Assembly Disassembly To do list https appliancetechmanuals com ...

Page 60: ...he picture 2 Unscrew 2 screws 3 Disengage the internal housing connector of the vertical hinge 4 Remove the vertical hinged section by lifting the vertical hinge up Refer to the picture 3 Full disassembly and assembly 3 16 Vertical Hinged Section To do list Be careful not to scratch or break the parts https appliancetechmanuals com ...

Page 61: ...ade screwdriver Refer to the picture 2 Unscrew 4 screws 3 Remove the the lower part of angle mid by pulling it out and pushing it down Refer to the picture 3 Full disassembly and assembly 3 17 Evaporator Cover In Refrigerator To do list Be careful not to scratch or break the parts https appliancetechmanuals com ...

Page 62: ...r 4 Remove the hook by pulling it from the lower part and pushing the cover down Refer to the picture 5 Disconnect the 2 housing connectors Refer to the picture 3 Full disassembly and assembly 3 17 Evaporator Cover In Refrigerator To do list https appliancetechmanuals com ...

Page 63: ...rator In Refrigerator 1 Remove the housing cover by pushing both lateral sides of the housing cover 1 and pulling it out Refer to the picture 3 Full disassembly and assembly 3 18 Evaporator In Refrigerator To do list https appliancetechmanuals com ...

Page 64: ...nnector on left side Refer to the picture 3 Disconnect the housing connector on right side 4 Remove the evaporator by lifting the bottom side of it up and pulling it out Refer to the picture 3 Full disassembly and assembly 3 18 Evaporator In Refrigerator To do list https appliancetechmanuals com ...

Page 65: ...r open to full extension 2 Remove the brackets by pulling the them outside after separate the tilting Pocket 3 Take out the lower basket by lifting the basket up from rail system 3 Full disassembly and assembly 3 19 Freezer Door To do list https appliancetechmanuals com ...

Page 66: ...lts 2 bolts each on the both sides 5 Lifting up the freezer door remove the freezer door from the rail 6 Press the both side hooks with flat blade screw driver Refer to picture 3 Full disassembly and assembly 3 19 Freezer Door To do list https appliancetechmanuals com ...

Page 67: ...Part name How to do Descriptive Picture Freezer Door 7 Remove the Freezer Rail by pulling it 3 Full disassembly and assembly 3 19 Freezer Door To do list https appliancetechmanuals com ...

Page 68: ...move the convertible room by pulling it to your body with both hands open to full extension 2 Remove the cover housing by a flat blade screwdriver 3 Disengage the housing lamp 3 Full disassembly and assembly 3 20 Convertible Door To do list https appliancetechmanuals com ...

Page 69: ...ew 4 bolts 2 bolts each on the both sides 5 Lifting up the convertible door remove the convertible door from the rail 6 Remove the shaft gear 2 by pull the pin 2 out 3 Full disassembly and assembly 3 20 Convertible Door To do list https appliancetechmanuals com ...

Page 70: ...Part name How to do Descriptive Picture Mid draw er 7 Remove the screw and pull out The rail 3 Full disassembly and assembly To do list 3 20 Convertible Door https appliancetechmanuals com ...

Page 71: ...aker 1 Pull the lever forward and take out the ice bucket 2 Remove 1 screw of the Cover 3 Disassemble the cover with a flat blade screwdriver and pull it out 3 Full disassembly and assembly 3 21 Ice Maker To do list https appliancetechmanuals com ...

Page 72: ...Maker 4 Disengage the 2 housing connectors 5 Push the hook and pull the Ice Maker out 6 To disassemble push the tab and pull the case auger and the motor out 3 Full disassembly and assembly 3 21 Ice Maker To do list https appliancetechmanuals com ...

Page 73: ...o Descriptive Picture Freezer Light 1 Remove the cover Convertible lamp by a flat blade screwdriver 2 Disengage the housing 3 Full disassembly and assembly To do list 3 22 Convertible Light https appliancetechmanuals com ...

Page 74: ...ve Picture Door Sw itch In Freezer 1 Remove the cover Freezer lamp like the way disassembling the Convertible lamp 2 Disengage the housing 3 Full disassembly and assembly To do list 3 23 Freezer Light https appliancetechmanuals com ...

Page 75: ... Picture Freezer Light 1 Remove the cover Side lamp by a flat blade screwdriver 2 Separate the Side lamp from the case 3 Disengage the housing 3 Full disassembly and assembly 3 24 Side Light To do list https appliancetechmanuals com ...

Page 76: ...w itch In Freezer 1 Remove the freezer drawer bin by using a flat blade screwdriver Refer to the picture 2 Disconnect the housing connector part 3 Full disassembly and assembly To do list 3 25 Door Sw itch In Freezer https appliancetechmanuals com ...

Page 77: ... door and freezer drawer bin by pulling out the drawer and then unscrewing 2 screws 2 Lift up the evaporator cover 3 Disengage the 3 housing connectors and remove the evaporator cover 3 Full disassembly and assembly 3 26 Evaporator Cover In Freezer To do list https appliancetechmanuals com ...

Page 78: ...y pushing both lateral sides of housing cover part and pulling it out Remove the housing connector part 2 Remove the evaporator by pulling the lower part of the evaporator while lifting it up 3 Full disassembly and assembly 3 27 Evaporator In Freezer To do list https appliancetechmanuals com ...

Page 79: ...d disengae the housing connector Refer to the picture 3 Remove the hooker of support circuit motor by lifting the hooker up and pulling it out 4 Remove the screw with a flatblade screwdriver Refer to the picture 3 Full disassembly and assembly To do list 3 28 Machine Compartment https appliancetechmanuals com ...

Page 80: ... fan out while graping the motor part Refer to the picture 6 Unscrew 2 screws fixed in the motor 7 Remove the hook of the motor cover with a flat blade screwdriver and then remove the motor 3 Full disassembly and assembly To do list 3 28 Machine Compartment https appliancetechmanuals com ...

Page 81: ...me How to do Descriptive Picture Step Valve 1 Unscrew 1 screw fixed on left 2 Disengage the housing connector 3 Full disassembly and assembly To do list 3 28 Machine Compartment https appliancetechmanuals com ...

Page 82: ...e Relay O L 1 Disengage the housing connector 2 Remove Cover Relay 3 Remove the relay O L with a flat blade screwdriver Refer to the picture 3 Full disassembly and assembly To do list 3 28 Machine Compartment https appliancetechmanuals com ...

Page 83: ...in 1 Unscrew 2 screws of the PCB cover 2 Disengage all housing connectors from the main PCB 3 Remove the main PCB by pushing the lower part of the hook down 3 Full disassembly and assembly 3 29 Electric Box To do list https appliancetechmanuals com ...

Page 84: ...ptive Picture PBA Main 4 Unscrew 2 PCB fixing screws 5 Remove the main PCB by lifting the upper part of the hook up Refer to the picture 3 Full disassembly and assembly To do list 3 29 Electric Box https appliancetechmanuals com ...

Page 85: ...art name How to do Descriptive Picture PBA SMPS 1 Remove the SMCS PCB by lifting the upper part of the hook up 3 Full disassembly and assembly 3 29 Electric Box To do list https appliancetechmanuals com ...

Page 86: ...Manual operation2 FF 2 Manual operation3 FF 3 manual defrost of fresh food and freezer compartments fd cancel Display all off If any key on the front of panel is not pressed within 15 seconds after the test mode the test mode will be canceled and it will be returned to previous mode 1 Manual operation function Energy Saver Key Power Cool Key are pressed simultaneously for 8 seconds displays are al...

Page 87: ...n2 and 3 separately These 3 functions operate with different RPM of COMP 1 3 If manual operation is selected compressor will run at once without 7 minutes delay in any mode If the refrigerator is on the defrost cycle at the moment defrost will be finished and manual operation will begin Be careful if manual operation get started at the moment of compressor off over load could be occurred Compulsio...

Page 88: ...tion Power Freeze Power Cool function will not be worked If a function is selected the power function icon of the selected function will be off automatically after 10 seconds 1 7 Manual operation can be canceled by turning on the appliance after power off reset or choosing the step 3 test cancel mode 1 8 Alarm 0 25 sec ON 0 75 sec OFF will beep continuously until manual operation is completed and ...

Page 89: ...manual defrost function of fresh food and freezer compartment To do list 3 Test cancel mode 3 1 During the simultaneous defrosting of fresh food and freezer compartments simultaneously if the display panel change to the test mode and test button is pressed one more time defrosting of fresh food and freezer compartments will be canceled at the same time and will return to the normal operation Or al...

Page 90: ... 5 sec ALL ON 0 5 sec ALL OFF alternately 1 2 Pc E display on the display panel will be ON OFF alternately until the communication error is canceled 0 5 sec ALL ON 1 5 sec ALL OFF alternately 2 Display function when Panel MAIN MICOM OPTION has error 2 1 OP Er code is repeatedly ON OFF until Option error settles down To do list 4 1 2 Display function of Communication error 4 Check the installation ...

Page 91: ...is recognized only when the error is displayed by the bad sensor Display does not operate normally but temperature control will be controlled by the emergency operation 1 4 When the error is detected by self diagnosis the error can be canceled automatically if all troubled sensors are corrected or Self diagnostic function key Energy Saver Key Lighting Key are pressed simultaneously for 8 seconds R...

Page 92: ...ll be selected 2 2 At this moment self diagnostic function will be returned with buzzer sound ding dong If there is an error display of error will be operated for 30 seconds and then return to normal condition whether problem is corrected or not Refer to self diagnosis CHECK LIST 2 3 Input by button is not accepted during self diagnostic function 4 Check the installation status 4 1 Function for fa...

Page 93: ...artment errors FF DEF Sensor Error Defrost Sensor system in FF compartment errors Ambient Sensor Error Snesor external system errors Flex room Error Sensor system in Pantry Room compartment errors I M Sensor Error R Sensor system in ICE maker R errors HUMIDITY Sensor Error Sensor system in Humidity Sensor error I M Sensor Error FF Sensor system in Ice maker FF errors ICE ROOM SENSOR ERROR Sensor s...

Page 94: ...X ZONE DAMPER HEATER ERROR DAMPER HEATER OPEN BAD WIRE ICE MAKER FUNCTION ERROR FZ ICE MAKER IN FZ FUNCTION ERRORS FLEX ZONE DAMPER HEATER ERROR DAMPER HEATER OPEN BAD WIRE ICE PIPE HEATER ERROR FZ ICE PIPE HEATER IN FZ COMPARTMENT ERRORS ICE MAKER FUNCTION ERROR FF SENSOR SYSTEM IN HUMIDITY SENSOR ERRORS ICE ROOM FAN ERROR FAN MOTOR SYSTEM IN ICE ROOM ERRORS PANEL MAIN MICOM COMMUNICATION ERROR P...

Page 95: ... Self diagnosis CHECK LIST To do list 4 Check the installation status 4 1 Function for failure diagnosis F R https appliancetechmanuals com ...

Page 96: ...Error The voltage of MAIN PCB CN30 8 N76 1 shall be between 4 5V 1 0V Ambient Sensor Error The voltage of MAIN PCB CN78 8 N78 12 shall be between 4 5V 1 0V Flex room Sensor Error The voltage of MAIN PCB CN78 9 N76 1 shall be between 4 5V 1 0V Humidity Sensor Error Separation of sensor housing part contact error disconnection short circuit The voltage of MAIN PCB CN30 1 N30 7 shall be between 4 5V ...

Page 97: ... fuse error Display error the defrosting does not finish though fresh food compartment defrost is heating continuously for more than 70 minutes After separating MAIN PCB CN70 wire from PCB resistance value between CN70 Brown CN70 Gray shall be 63 230 ohm 7 Resistance value is varied by input power 0 ohm heater short ohm wire bimetal open Must power off FF DEF Error Separation of freezer compartmen...

Page 98: ...code again and check the operation Ice Room FAN Error Display error when the Ice Maker FZ kit operate moving ice over 3 times or it is not leveled The voltage of MAIN PCB CN76 2 Black CN76 1 Gray shall be between 7V 12V Panel IMain Communication Error Display A 41 E A a in the panel with alarm MICOM MAIN PANEL communication error OP Er is displayed when the Option is not equivalent with the right ...

Page 99: ...mean whether load is operating or not That is to say that though load operation is displayed load could not be operated by actual load error or PCB relay error etc This function would be applied at A S 4 Load condition display function will maintain for 30 seconds and then normal condition will be returned automatically 5 Load condition display is as below Only the load control LED will blink with...

Page 100: ...LED ON F 1 ⓒ F FAN Low When FZ compartment FAN operates with low speed applicable LED ON F 1 ⓓ F DEF Heater When FZ compartment defrost heater operates LED ON F 1 ⓔ Mide Drawer Room When Flex Zone FAN operates LED ON F 1 Dispenser Heater When Dispenser Heater operates applicable LED ON R 10 ⓐ Mide Drawer Room Damper Open When damper open applicable LED ON R 10 ⓑ R valve Open When the R valve opera...

Page 101: ...partments sensors are higher than 149Ԭ 65Ԩ Cooling Off mode will be canceled automatically and freezing operation will be returned There is no buzzer sound when the Cooling Off mode is canceled by the temperature 5 Operation contents of Cooling Off mode Display Fan motor and etc operate normally not to operate compressor only Defrost is not operated including french heater Display function of the ...

Page 102: ...ts temperature display will be changed to option setting mode KEY operation method for changing to option mode 4 1 6 Option setting function If Freezer Key lighting Key are pressed simultaneously for 12 seconds option setting mode will be started 4 Check the installation status 4 1 Function for failure diagnosis https appliancetechmanuals com ...

Page 103: ...e Value down key Fridge key Reference Value Up key 4 Check the installation status 4 1 Function for failure diagnosis If Power freeze Key lighting Key are pressed simultaneously for 12 seconds during normal operation fresh food and freezer compartments temperature display will be changed to option setting mode Key control in option mode https appliancetechmanuals com ...

Page 104: ...e of freezer compartment if you make the temperature lower to 4Ԭ 2Ԩ by the option the standard temperature would be controlled 6Ԭ 21Ԩ Therefore if you change the setting of temperature option to 2Ԭ 19Ԩ on the panel the appliance will be operated with 6Ԭ 21Ԩ It means that standard temperature is controlled 4Ԭ 2Ԩ less than setting temperature in the display Note Basically all the data in option has ...

Page 105: ...r compartment temperature code will be displayed on the freezer temperature display 3 If freezer compartment 4 is set as below freezer compartment code after fresh food compartment 0 is set standard temperature of freezer compartment will be lower than 4Ԭ 2 0Ԩ Refer to the picture changing the freezer compartment temperature If you wait for 20 seconds after completing the setting MICOM will save t...

Page 106: ... better not to change the option of your own Completing the setting is that option function return to normal display after 20 seconds Do not turn off the appliance before returning to the normal display mode Note Option setting function exists in the other items We will skip the explanation of the other functions by the option because it is associated with refrigerator control function and is not ...

Page 107: ... 5 11 4 2 0 12 5 2 5 13 6 3 0 14 7 3 5 15 8 4 0 Set item Freezer Temp Shift MODEL RF4287 Reference Value Fridge Room 7 SEG 1 Setting value Temp compensation FZ Compartment code 0 0 0 0 1 1 0 5 2 2 1 0 3 3 1 5 4 4 2 0 5 5 2 5 6 6 3 0 7 7 3 5 8 1 0 5 9 2 1 0 10 3 1 5 11 4 2 0 12 5 2 5 13 6 3 0 14 7 3 5 15 8 4 0 ex If you want to change the freezer standard temperature to 4Ԭ 2Ԩ ex If you want to chan...

Page 108: ... 28 18 4 4 129 47431 41 41 8 4 514 92903 27 16 6 4 093 45146 40 40 4 490 88037 26 14 8 4 056 42984 39 38 2 4 465 83456 25 13 4 018 40938 38 36 4 4 439 79142 24 11 2 3 980 39002 37 34 6 4 412 75077 23 9 4 3 940 37169 4 Check the installation status 4 2 Diagnostic method according to the trouble symptom Flow Chart DATA1 Temperature table Resistance value and MICOM port voltage of sensor according to...

Page 109: ... 5 3 594 25562 2 35 6 2 751 12233 14 6 8 3 548 24425 3 37 4 2 700 11741 13 8 6 3 501 23345 4 39 2 2 649 11271 12 10 4 3 453 22320 5 41 2 599 10823 11 12 2 3 405 21345 6 42 8 2 548 10395 10 14 3 356 20418 7 44 6 2 498 9986 9 15 8 3 307 19537 8 46 4 2 449 9596 8 17 6 3 258 18698 9 48 2 2 399 9223 7 19 4 3 208 17901 10 50 2 350 8867 6 21 2 3 158 17142 11 51 8 2 301 8526 4 Check the installation statu...

Page 110: ...2 1 929 6281 36 96 8 1 277 3428 20 68 1 885 6052 37 98 6 1 253 3344 21 69 8 1 842 5832 38 100 4 1 213 3204 22 71 6 1 799 5621 39 102 2 1 183 3098 23 73 4 1 757 5419 40 104 1 153 2997 24 75 2 1 716 5225 41 105 8 1 124 2899 25 77 1 675 5039 42 107 6 1 095 2805 26 78 8 1 636 4861 43 109 4 1 068 2714 27 80 6 1 596 4690 44 111 2 1 040 2627 28 82 4 1 558 4526 45 113 1 014 2543 4 Check the installation s...

Page 111: ...0 803 1913 74 165 2 0 481 1063 55 131 0 783 1855 75 167 0 469 1034 56 132 8 0 762 1799 76 168 8 0 457 1006 57 134 6 0 743 1745 77 170 6 0 446 978 58 136 4 0 724 1693 78 172 4 0 435 952 59 138 2 0 706 1642 79 174 2 0 424 926 60 140 0 688 1594 80 176 0 414 902 61 141 8 0 670 1547 81 177 8 0 404 877 62 143 6 0 653 1502 82 179 6 0 394 854 63 145 4 0 636 1458 83 181 4 0 384 832 64 147 2 0 620 1416 84 1...

Page 112: ...21 1285 8 1173 240 961 22 1598 327 1309 9 1205 247 987 23 1627 333 1333 10 1235 253 1011 24 1656 339 1356 11 1266 259 1037 25 1685 345 1380 12 1297 265 1062 26 1713 350 1403 13 1328 272 1088 27 1741 356 1426 4 Check the installation status 4 2 Diagnostic method according to the trouble symptom Flow Chart DATA2 Humidity Sensor table Voltage output table 23 5Vdc HTG3515CH HTG3535CH RH Temperature co...

Page 113: ...27 56 2505 513 2052 37 2012 412 1648 57 2530 518 2072 38 2038 417 1669 58 2555 523 2093 39 2064 422 1690 59 2580 528 2113 40 2090 428 1712 60 2605 533 2133 41 2116 433 1733 61 2630 538 2154 42 2142 438 1754 62 2655 543 2174 43 2168 444 1776 63 2680 548 2195 44 2194 449 1797 64 2705 553 2215 45 2220 454 1818 65 2730 559 2236 46 2246 460 1839 66 2756 564 2257 47 2272 465 1861 67 2782 569 2278 4 Chec...

Page 114: ...4 717 2870 75 2990 612 2449 95 3530 722 2891 76 3017 617 2471 96 3566 730 2920 77 3044 623 2493 97 3595 735 2944 78 3071 628 2515 98 3624 741 2968 79 3098 634 2537 99 3653 747 2992 80 3125 639 2559 100 3683 754 3016 81 3152 645 2581 82 3179 650 2604 83 3206 656 2626 84 3233 661 2648 85 3260 667 2670 86 3288 673 2693 87 3316 678 2716 4 Check the installation status 4 2 Diagnostic method according t...

Page 115: ...t be not operated if the appliance is operated by the emergency operation mode You would better to check the appliance according to the self diagnosis of the manual 1 If ICE Maker R Sensor has troubled Is the voltage between MAIN PCB Connector CN90 4 White and REG1 HEAT SINK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector number ICE Maker Connector CN90 1 Brown and REG1 HEAT SINK PCB common...

Page 116: ... SINK are below typical PCB Ground REG1 HEAT SINK 5 Self Diagnosis Trouble Shooting Is input voltage of IC01 MICOM 78 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of IC01 MICOM 89 CN90 1 Brown and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R914due to the SMD MICOM 5 1 If the...

Page 117: ...White and REG1 HEAT SINK normal NO NO 0 6V Measurement 4 6V Sensor MICOM Connector number R Connector CN30 6 White to REG1 HEAT SINK PCB typical Ground Voltage measured between 4 6V 0 6V Replace the temperature sensor Recheck the wire connection part Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor R CN30 6 CN76 1 measuring resi...

Page 118: ... SINK are as below Typical PCB Ground REG1 HEAT SINK 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM 76 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage IC01 MICOM 76 CN30 6 White and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R311 due to the SMD MICOM 5 1 I...

Page 119: ...8 Skyblue and REG1 HEAT SINK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector Number R DEF Connector CN30 8 Sky blue and REG1 HEAT SINK PCB common Ground Voltage measured between 4 6V 0 6V Replace the temperature sensor Recheck the wire connection part Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor R DEF CN30 8 CN76 1 me...

Page 120: ...K are as below Typical PCB Ground REG1 HEAT SINK 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM 74 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of IC01 MICOM 78 CN30 8 Sky blue and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R313 due to the SMD MICOM 5 1...

Page 121: ...NK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector number Ambient Connector CN78 8 Yellow to REG1 HEAT SINK PCB typical Ground Voltage measured between 4 6V 0 6V Replace the temperature sensor Recheck the wiring connection Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor Ambient CN78 8 12 measuring resistance value Placed...

Page 122: ...T SINK are as below Typical PCB Ground REG1 Heater Sink 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM 72 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of IC01 MICOM CN78 8 Yellow and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R315 due to the SMD MICOM 5...

Page 123: ...CN30 3 Red and REG1 HEAT SINK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector number F Connector CN30 3 Red to REG1 HEAT SINK PCB typical Ground Voltage measured between 4 6V 0 6V Replace temperature sensor Recheck the wiring connection Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor F CN30 3 CN76 1 measuring resistance ...

Page 124: ...e as below Typical PCB Ground REG1 Heater Sink 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM 81 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of IC01 MICOM 74 CN30 3 Red and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R309 due to the SMD MICOM 5 1 If the...

Page 125: ... 4 Orange and REG1 HEAT SINK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector number F DEF Connector CN30 5 Orange to REG1 HEAT SINK PCB typical Ground Voltage measured between 4 6V 0 6V Replace temperature sensor Recheck the wiring connection Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor F DEF CN30 5 CN76 1 measuring r...

Page 126: ...SINK are as below Typical PCB Ground REG1 Heater Sink 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM 77 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of IC01 MICOM 75 CN30 5 Orange and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R310 due to the SMD MICOM ...

Page 127: ...Orange and REG1 HEAT SINK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector number Ice Room Connector CN78 10 Orange and REG1 HEAT SINK from typical PCB Ground Voltage measured between 4 6V 0 6V Replace temperature sensor Check the wiring connection Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor Ambient CN78 10 CN76 1 Mea...

Page 128: ... REG1 HEAT SINK are as below Typical PCB Ground REG1 Heater Sink 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM 71 normal YES NO No trouble with PCB and temperature sensor Check the bad connections YES Measuring voltage of IC01 MICOM 90 CN78 10 Orange and REG1 HEAT SINK from typical PCB Ground are similar Check the measure on the Resistance R316 due to the SMD MICOM 5 1 If th...

Page 129: ...iteblack and REG1 HEAT SINK normal NO 0 6V Measurement 4 6V Sensor MICOM Connector number Pantry Connector CN30 9 Yellow to REG1 HEAT SINK PCB typical Ground Voltage measured between 4 6V 0 6V Replace temperature sensor Recheck the wiring connection Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor Flex CN30 9 CN76 1 measuring re...

Page 130: ...s below Typical PCB Ground REG1 Heater Sink 5 Self Diagnosis Trouble Shooting Is the input voltage of IC01 MICOM Pin 73 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of IC01 MICOM 81 CN30 9 Yellow and REG1 HEAT SINK from PCB typical Ground part are similar Check the measure on the Resistance R314 due to the SMD MICOM 5 1 If...

Page 131: ... Sink normal Sensor MICOM Connector number Humidity Connector CN30 3 brown to REG1 HEAT SINK PCB typical Ground Voltage measured between 4 6V 0 6V Replace the Humidity Sensor Recheck the PCB Wire Terminal connection Refer to circuit diagram in the manual DATA1 Temperature table Measuring point of resistance value according to Sensor Humidity CN30 1 3 Resistance value with opened about 50Ω 0Ω Short...

Page 132: ...wn REG1 HEAT SINK are below Typical PCB Ground REG1 HEAT SINK 5 Self Diagnosis Trouble Shooting Is input voltage of ICO1 MICOM 73 normal YES NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection YES Measuring voltage of ICO1 MICOM 73 CN30 3 Brown and REG1 HEAT SINK fromPCB typical Ground part are similar Check the Resistance R321 5 1 If the trouble is detected by ...

Page 133: ...Shooting 10 Mid Drawer Room Damper Heater has trouble Is the input voltage of IC01 MICOM 48 normal ERROR Code To do list YES NO Measure the resistance between after CN77 connector open 135ohm 7 MICOM 48 condition Initial power On Heater off Working heater 3 5V 4 8V 3 5V 4 8V 0V 1 Wire connector 2 Replace Heater 1 Recheck the wire 2 Replace PCB MAIN Is Tank Water Heater normal about72ohm https appl...

Page 134: ...stance CN77 1 Black 2 Brown Ω Open wire disconnection heaterdisconnection trouble 0Ω Short trouble 5 Self Diagnosis Trouble Shooting 5 1 If the trouble is detected by self diagnosis YES Normal recheck To do list https appliancetechmanuals com ...

Page 135: ...sis Trouble Shooting 11 Ice Duct Heater option has trouble Is the input voltage of IC01 MICOM 50 normal ERROR Code To do list YES NO Heater Micom IC01 Initial power On Heater off Working heater Ice Duct 50 3 5V 4 8V 3 5V 4 8V 0V 1 Wire connector 2 Replace Heater 1 Recheck the wire 2 Replace PCB MAIN Is Tank Water Heater normal about72ohm Heater Ice Duct Connector CN51 2 CN79 2 ohm 60ohm 7 https ap...

Page 136: ...nce CN51 2 Brown CN79 2 Yellow Ω Open wire disconnection heater disconnection trouble 0Ω Short trouble 5 Self Diagnosis Trouble Shooting 5 1 If the trouble is detected by self diagnosis YES Normal recheck To do list https appliancetechmanuals com ...

Page 137: ...ore power off Is COMPRESSOR ON For C FAN For R FAN For F FAN Is the voltage between MAIN PCB REG1 HEAT SINK and CN 76 5 Sky blue around DC7 12V Start YES NO NO Execute manual operation YES NO Is the external temperature above 66 2 Ԭ 19Ԩ NO Is the voltage between MAIN PCB REG1 Heater Sink and CN76 4 Orange around DC7 12V NO Is the voltage between MAIN PCB REG1 Heater Sink and CN 30 2 Purple around ...

Page 138: ... Close 5V High 0V Low Open 0V Low 5V High Recheck after 5 minutes Time could be delayed depending on the temperatures If the temperature is lower It may not operate about 59Ԭ below 15Ԩ For C FAN For R FAN For F FAN Does DC7 12V alternate with below DC 2V between MAIN PCB REG1 Heater Sink and CN76 5 Sky blue Does DC7 12V alternate with below DC 2V between MAIN PCB REG1 Heater Sink and CN76 4 Orange...

Page 139: ...restarted after 10 Minutes This function is effective when the normal operation of motor would be restrained by foreign matters such as ice typical PCB Ground REG1 Heater Sink The voltage measured around 2 3V with multi meter though the voltage is very weak because of pulse signal Checking method of R F C FAN Motor voltage The voltage between PCB typical Ground REG1 Heater Sink and F FAN CN76 3 Ye...

Page 140: ...y Operation temperature ready NO YES NO YES When pressing the ICE TEST S W for a certain period of time over 1 5sec the function is accomplished After beginning of TEST mode Ice maker heater turns on for initial 2 minutes if the ice making temperature is below 0Ԩ If it exceeds 0Ԩ Ice maker heater turns on for initial 30 seconds After Ice maker heater turns on for 30 seconds it turns off and then I...

Page 141: ...tion is against the case that motor movement would be restrained by foreign matters like ice Predicted Cause FAN MOTOR troubles itself Bad wiring connections Wrong Input of the fan motor rotation pulse F FAN pulse voltage CN76 6 Pink The voltage is variable due to pulse signal but measured about 2 3V with the Multi Meter typical PCB Ground REG1 Heater Sink Checking method of Ice Room FAN Motor Vol...

Page 142: ...rt Is COMPRESSOR ON Is the voltage between CN79 1 Orange and 3 Blue Black around DC10 12V YES Execute manual operation NO YES NO Is the Flex Room temperature suitable for the Fan working YES NO FAN works normally Operation temperature ready Flex Room control temperature Sort Micom IC01 Initial power On Heater off Working heater Tempera ure 37Ԭ 3Ԩ 42Ԭ 6Ԩ 27Ԭ 3Ԩ 32Ԭ 0Ԩ https appliancetechmanuals com...

Page 143: ...Bad wiring connections Wrong Input of the fan motor rotation pulse Replace MAIN PCB Checking method of Flex Zoon FAN Motor Voltage with the voltage between CN79 1 Orange and 3 Blue shall be less than DC10 12V Additional check if resistance values are different after measurement 1 Flex Room FAN 5 4 If FAN does not operate Flex Room FAN https appliancetechmanuals com ...

Page 144: ... 3 Ice Maker operation shall be checked after pressing the Ice Maker testing switch Fridge Ice Maker It is not possible to check when the power is disengaged 4 We recommend that TWO PEOPLE check the PCB and Ice Maker because they are located at front and rear side each 5 Be careful The Ice Maker Heater can cause personal injury like burn ERROR Code MICOM IC02 Operation Status 37 Test Switch Operat...

Page 145: ...the operation condition of Water Valve 2 Replace the Main PCB MICOM IC01 Operation Status Ready Rotation Before Complete Returning 39 Blade Ice Scoop 0V 4 9V 4 9V 0V 39 Guide Ice Full 0V 0V 4 9V 0V To do list Is the Ice Maker Sensor unit normal No trouble with PCB and temperature sensor Check the bad wiring connections YES NO 1 Repair the Ice Maker Sensor Refer to the solution If Ice Maker Sensor ...

Page 146: ... shall be DC 0V Test Switch ready CN90 2 Black shall be less than DC 5V 1 Test Switch operating 1 Test Switch ready Typical PCB Ground REG1 Heater Sink Checking Method of ICE Maker Voltage With typical PCB Ground REG1 Heater Sink and 2 IC02 MICOM 39 voltage Ready 0V Rotate 4 9V Before complete 4 9V Return 0V MICOM 39 voltage is same as Connector CN90 7 Purple 3 IC02 MICOM 38 voltage Ready 0V Rotat...

Page 147: ...suring resistance value 63 ohm 7 R DEF CN70 7 White CN70 13 Gray measuring resistance value 120 ohm 7 0Ω Short trouble Ω Open bimetal heater trouble Refer to self diagnostic function in the manual Reference to the manual Self Diagnostic 5 6 If defrost does not operate F R DEF Heater R DEF ERROR F DEF ERROR To do list If defrost has trouble select the self diagnostic function to detect the error of...

Page 148: ...frosting will be operated Is power applied to each defrost heaters NO Does the system return to cooling operation after heating for specified time YES NO Normal YES YES Recheck the applicable sensor Reference If defrost sensor temperatures of fresh food and freezer compartments are higher than 50Ԭ 10Ԩ 53 6Ԭ 12Ԩ by the heating from heater heating would be finished and will return to cooling operati...

Page 149: ...f disconnection etc Replace failure Relay or replace PCB ASS Y Checking method of F R DEF Heater resistance value CN70 9 Brown CN70 13 Gray CN70 7 White CN70 13 Gray Recheck if resistance values are different after the test 1 F DEF Heater 2 R DEF Heater To do list 5 6 If defrost does not operate F R DEF Heater https appliancetechmanuals com ...

Page 150: ...ltage over DC 170V are occurred Please take care of yourself during repair and measurement Refer to the function and reference parts in the manual when check the MAIN PCB Is power 115V applied to the both terminals of SMPS PCB CN70 1 Replace FUSE AC 250V 2 0A 2 Replace PCB ASS Y 5 7 If Pow er is not supplied Check the assembly and wire connection 1 Check PCB PATTERN and replace BD1 2 Replace PCB A...

Page 151: ...Replace Panel PCB Is the load i e Relay normal NO YES YES Checking method of voltage CN70 11 Red 13 Gray AC voltage Checking method of DC 2nd output voltage REG1 input Regulator 7805 same as C107 terminals DC 12 0V 0 8V Checking method of DC 2nd output voltage REG1 output Regulator 7805 same as TD102terminals DC 5V 0 5V 5 7 If Pow er is not supplied 1 Check REG1 KA7805 2 Replace PCB ASS Y 1 Check ...

Page 152: ... short breakage Normal Recheck 1 Solder again 2 Replace PCB MAIN YES NO Check MAIN PCB connection Check the connections between cabinet and door Check the connections between door and panel PCB 5 7 If Pow er is not supplied To do list https appliancetechmanuals com ...

Page 153: ...l operation Is CN75 PIN 4 High 2 5V Is the wiring between Main and Sub normal Is the temperature sensor of MAIN PCB normal Repair OPEN disconnection YES NO YES NO NO YES YES NO YES YES YES Refer to test function in the manual NO Replace PCB NO Check the wire disconnection 5 8 If compressor does not operate Repair OPEN disconnection Repair the sensor replace PCB 0 800Hz 50 Duty Signal output To do ...

Page 154: ...l Check bad contact of connector YES NO Is the DIODE voltage between Pins for a single SPM part normal Replace the INVERTER PCB ASS Y YES Refer to the DIODE voltage value in the SPM NO Is the resistance value at the measured position normal Replace the resistance INVERTER PCB ASS Y YES 300K F CHIP INVERTER PCB R301 302 303 304 305 306 307 NO YES To do list https appliancetechmanuals com ...

Page 155: ...O YES Normal Voltage checking method Common Ground REG1 Heater Sink in PCB and 1 IC01 MICOM 4 Square wave voltage 3V measured after MULTI TEST IC01 MICOM 4 COMP operates 5 8 If compressor does not operate Common PCB Ground REG1 Heater Sink To do list https appliancetechmanuals com ...

Page 156: ...5 Self Diagnosis Trouble Shooting To do list IPM FREEWHEELING DIODE VOLTAGE VALUE https appliancetechmanuals com ...

Page 157: ...it normal Door is ajar YES YES NO Remove causes after comprehending the conditions of interferance by door gasket food etc Replace Door S W NO YES Is the connector CN76 inserted correctly NO Replace Door S W Connector is not inserted Repair disconnect part YES To do list Door MICOM State Door FZ MICOM 53 FF MICOM 52 Mid Drawer MICOM 51 Right and Left Close 5V High 0V Low 0V Low Open 0V Low 5V High...

Page 158: ...Recheck and replace Panel PCB 5 9 When alarm sounds continuously w ithout stop related w ith buzzer sound 1 If ding dong sound continuously To do list Seperate the door switch andcheck if the measured value of unit is changed from 0Ω to Ω according to switch ON OFF FF Door Switch is magnetic switch It can be operated when door magnet is combined with it https appliancetechmanuals com ...

Page 159: ...er On again YES NO Normal Recheck and Replace Panel PCB Enforce the cancelation the manual operation defrost function or power On after power Off NO YES 5 9 When alarm sounds continuously w ithout stop related w ith buzzer sound 2 If beep beep sounds continuously To do list https appliancetechmanuals com ...

Page 160: ... PCB assembly when the failure associated with panel is occurred except the minor error such as switch pressing error surface peeling off and so on Start Does it sound dingdong if press a button on the front panel Does it make a sound of door open alarm when you are opening the door of freezer or Fridge more than 3 minutes NO YES Check the panel PCB with reference of how to check Panel Display MAI...

Page 161: ...of a component fall on the vibration plate of buzzer NO YES Replace Panel PCB YES NO NO Replace Panel PCB Recheck the button pressing force and mechanical problem 5 9 When alarm sounds continuously w ithout stop related w ith buzzer sound 3 If buzzer does not sound To do list https appliancetechmanuals com ...

Page 162: ... Repair bad contact 5 10 If Mid Draw er Panel PCB does not work normally NO Reinsert connector in MAIN PCB Is signal of MAIN PCB CN51 normal YES NO Check voltage Replace MAIN PCB To do list You should check the display after door opening because the display of this model operates only when the fresh food compartment door is opened YES Check and repair the switch Refer to how to repair door switch ...

Page 163: ...ble Shooting Panel PCB itself has trouble Is a key pressed continuously Is the PCB system still operated by separating of the mechanism To do list 5 10 If Mid Draw er Panel PCB does not work normally Reassemble PCB ASS Y Enforce the cancelation of pressed keys Reassemble PCB ASS Y Enforce the cancelation of pressed keys If Panel PCB Key is not selected If it is not repaired with the above basic ch...

Page 164: ...nel PCB does not work normally YES Is a normal voltage outputted from MAIN PCB IC74 during the key operating NO NO NO Convertible compartment Panel PCB itself has trouble Replace MAIN PCB Check the short of MAIN Panel wire Common PCB Ground REG1 Heater Sink Checking method of voltage Based on PCB typical Ground REG1 Heater Sink 1 Key voltage CN51 11 Sky Blue a Working 2V 0 5V b Normal 0V The Volta...

Page 165: ... light with Regulator 12V LED LAMP Applying to the FF FZ Mid Drawer compartment Option If the Vegetable Lamp does not work properly check the FF compartment LED Lamp because it is connected with the FF compartment LED Lamp in parallel Refer to the circuit diagram to repair 5 11 When refrigerator ROOM Lamp does not light up MICOM State Door Right and Left FF FZ Mid Drawer 52 53 51 Close 0V Low 5V H...

Page 166: ...utput properly 11 12V NO YES Is the LED LAMP connected properly NO Check the connector terminal YES Check the wire Re insert the connector Check the connector terminal Replace PCB 5 11 When refrigerator ROOM Lamp does not light up Is the LED LAMP normal NO Replace LED LAMP YES Normal To do list https appliancetechmanuals com ...

Page 167: ...not light up 1 Measuring IC76 voltage CN 3 Red FF LED Measuring IC77 voltage CN78 1 Brown FZ LED Measuring IC78 voltage CN78 6 White Black Mid Drawer LED CLOSE OPEN Typical PCB Ground REG1 Heater Sink FF LED Lamp ON FF LED Lamp OFF To do list https appliancetechmanuals com ...

Page 168: ...eck Ice water valve hose Check soldering short Replace PCB 5 12 If ICE Water is not supplied 1 Please shut the water supplying prior to repair 2 Power is applied to the one end of wires Be careful when disassembling not to get an electric shock Typical PCB Ground REG1 Heater Sink Checking method of voltage Based on PCB typical Ground REG1 Heater Sink 1 Check the voltage of IC73 4 same voltage as I...

Page 169: ...erating AC voltage For checking the Relay RY78 operating CN73 and CN74 combined and use same connector 13p CN70 11 Red CN73 7 Purple ICE Water valve waiting about AC 0V 5 12 If ICE Water is not supplied To do list YES Check soldering short Replace PCB NO Does Main PCB IC73 15 have about 0 7V output MAIN PCB normal Need to check the other parts Check the wire between Ice water valve MAIN PCB Ice wa...

Page 170: ...the wiring connections of Ice moving motor Check if the COVER ICE ROUTE opens Check the Q706 movement related with AUGER_MOTOR safety YES NO Are Ices in the Ice bucket NO Is Ice Off mode selected on the display panel YES Cancel the Ice Off Check the water pipe bending Shut off heck route of ice check solenoid Check he Ice Maker wiring Start Crushed Ice Cubed Ice To do list https appliancetechmanua...

Page 171: ...ure Replace NO YES Is IC73 1 2 changed into 5V when pressing Ice Switch Replace the MAIN PCB Errors on IC01 NO YES Is Crushed Ice ejected Normal Operation status NO Is Crushed Ice mode selected on the panel PCB Crushed Ice selected NO YES Is the CUBE MOTOR positioned at cubed ice mode Check the wire connections Motor Cube NO YES Is MICOM IC01 103 change into 0V when press Ice switch Check the Ice ...

Page 172: ...OR MAIN PCB Check the door wiring connections CUBE MOTOR MAIN PCB Check the door wiring connections trouble their own or bad wiring connections YES Is the contact point of RY7A RELAY changed into 0Ω RY7A RELAY Error Replace the MAIN PCB NO YES After disconnecting the CN71 CN73 measure The both ends of Contact points NO YES To do list After disconnecting the CN71 CN73 measure The both ends of Conta...

Page 173: ...ectric shock 2 Be careful When disassemble the Cover Ice Motor spring can jumped out and may cause personal injury 3 Motor will rotate continuously when the Motor Switch is not sensed Checking Method of Cover Ice Route Motor Resistance Make sure to work after Power Off The Resistance is variable according to the input voltage CN73 and CN74 combined and use same connector 13P CN70 11 Red CN73 9 Blu...

Page 174: ...r CN73 9 CN70 11 Definitely plug out prior to repair 5 Self Diagnosis Trouble Shooting 5 14 If Cover Ice Route Motor Geard Motor is not working normally Check the MOTOR Check any interference on MOTOR rotation Is the sensing SWITCH connection normal Is the switch pressed area normal when motor rotates Check Repair the Housing connector YES YES NO NO Check Repair the Motor Rotation pressing area To...

Page 175: ...OPEN SHORT between the Cover Ice Motor Rotation sensing switches Check the Short of Cover Ice Motor Control Circuit SSR75 in the MAIN PCB Replace the MAIN PCB or the Dispenser Cover Motor Operating Condition of Dispenser Open Close CN50 Switch 1 2 Operating Close ing Open Ice Route Switch 1 CN50 9 Purple 0V 5V 0V Ice Route Switch 2 CN50 10 White 0V 5V 0V To do list https appliancetechmanuals com ...

Page 176: ...d between both ends of BD1 NO Replace FUSE 250V 6 3A Check PCB PATTERN Replace BD1 Caution At the INVERTER PCB Power AC 110V 220V power and over DC 300V of high voltage are applied Please take care of yourself when repair and measure See the operations and reference in this manual when check the MAIN PCB Is 110V 220V applied between both end of PCB inverter CN101 1 and CN102 3 NO YES NO YES To do ...

Page 177: ...D IC 10 PIN Is 5V applied to C106 YES NO Replace PCB ASS Y 1 Replace HYBRID IC IC3 BP5047B15 2 Replace PCB ASS Y YES Is there any PCB soldering short or breakage NO Replace REG1 KA78L05 Replace PCB ASS Y Is DC15V applied to HYBRID IC 1 PIN YES Normal YES YES NO NO To do list https appliancetechmanuals com ...

Page 178: ...re 1 Short between COMP U V and W phase CN301 2 Short among IPM Pins No 1 33 3 Drop the IPM operating Voltage under DC 13 5V 4 Other cases cjeck the COMP cycle etc SPM Fault Abnormal Current Detection 1 Open the COMP wire CN301 2 Bad condition of R 308 ex Bad soldering 3 Other cases cjeck the COMP cycle etc Motor Locked Over RPM 1 Operating the locked rotor COMP with in 5 second 2 Operating the CO...

Page 179: ...nternal DIODE Voltage VBS measurement Open VBS measurement 0 5V 0 6V I GBTmeasurement Open measurement Open To do list VCC LS measurement 0 5V 0 6V 30 40 kohm FWD measurement 0 4V 0 5V VBS measurement 0 5V 0 6V https appliancetechmanuals com ...

Page 180: ...ion sensing resistance area It senses motor location through the current detected 4 Current sensing area It senses the current from the SHUNT resistance and controls PWM DUTY 5 COMP operating SIGNAL area It receives COMP operating signal from MAIN PCB and conduct it 6 BOOTSTRAP live part Charging circuit that 1GBT of SPM can On Off securely To do list INVERTER CONTROLLER BOARD Connector Location h...

Page 181: ...5 Self Diagnosis Trouble Shooting To do list INVERTER PCB Circuit Diagram https appliancetechmanuals com ...

Page 182: ...6 1 PCB Layout w ith part position 6 PCB Diagram To do list https appliancetechmanuals com ...

Page 183: ...tion Option PLC module is not inserted unless specified occasion 8 Operate ICE MAKER supply power to MOTOR and sense the variation of switch 9 Main Micom Panel Micom serial communication circuit Dispenser option input part Water Cover Ice route switch 10 Flex room display control part display LED detect KEY state 11 Control Flex room damper Damper heater 12 Water Tank Heater Controls also controls...

Page 184: ...6 2 PCB Layout w ith part position Inverter Board To do list 6 PCB Diagram https appliancetechmanuals com ...

Page 185: ... It detects the current from the SHUNT resistance and controls PWM DUTY 4 COMP operating Signal area It receives COMP operating signal from Main PCB and conduct it 5 BOOTSTRAP live part Charging circuit that 1GBT of SPM can On Off securely 6 IPM The output circuit for operating COMP of the Refrigerator 6 2 PCB Layout w ith part position SMPS Board To do list 6 PCB Diagram https appliancetechmanual...

Page 186: ...6 3 Connector Layout w ith part position Main Board To do list 6 3 1 RF4287HA 6 PCB Diagram https appliancetechmanuals com ...

Page 187: ... VDD VSS RPM FB 6 4 Connector Layout w ith part position Inverter Board U V W POWER 110V OLP To do list 6 4 1 RF4287HA 6 PCB Diagram https appliancetechmanuals com ...

Page 188: ...7 Wiring Diagram To do list 7 1 Model RFG295AA BETTER https appliancetechmanuals com ...

Page 189: ...7 Wiring Diagram To do list 7 2 Model RF4287AA BEST https appliancetechmanuals com ...

Page 190: ...7 Wiring Diagram To do list 7 3 Model RFG299AA 7 LCD https appliancetechmanuals com ...

Page 191: ...7 Wiring Diagram To do list 7 4 Model RFG294AA SEARS https appliancetechmanuals com ...

Page 192: ...8 Schematic Diagram 8 1 Whole block diagram 8 1 1 MAIN BLOCK RF4287 To do list https appliancetechmanuals com ...

Page 193: ...8 1 Whole block diagram 8 1 2 INVERTER BLOCK RF4287 To do list 8 Schematic Diagram https appliancetechmanuals com ...

Page 194: ...8 2 CIRCUIT DIAGRAM 8 2 1 Main To do list 8 Schematic Diagram https appliancetechmanuals com ...

Page 195: ...8 2 CIRCUIT DIAGRAM 8 2 2 INVERTER To do list 8 Schematic Diagram https appliancetechmanuals com ...

Page 196: ...located near a heat source Is the back of the Refrigerator too close to the wall and therefore keeping air from circulating The food in the Refrigerator is frozen Check the set temperature on the digital display is too low Try setting it to a warmer temperature Is the temperature in the room too low Try setting it to a warmer temperature Did you store the food which is juicy in the coldest part of...

Page 197: ...d occurs because various accessories are contracting or expanding according to the temperature of the Refrigerator interior The front corners and vertical hinged section of the appliance are hot and condensation is occurring Some heat is normal as anti condensators are installed in the vertical hinged section of the Refrigerator to prevent condensation Is the Refrigerator door ajar Condensation ca...

Page 198: ...s the Freezer temperature too warm Try setting the Freezer temperature lower You can hear water bubbling in the Refrigerator This is normal The bubbling comes from the Refrigerator coolant liquid circulating through the Refrigerator There is a bad smell in the Refrigerator Check for spoiled food Foods with strong odors for example fish should be tightly covered Clean out your Freezer periodically ...

Page 199: ...cient air circulation Is the Freezer drawer closed properly Water dispenser is not functioning Is the water line connected and the shut off valve opened Has the water supply line tubing been crushed or kinked Make sure the tubing is free and clear of any obstruction Is the water tank frozen because the Refrigerator temperature is too low Try selecting a warmer setting on the Digital display To do ...

Page 200: ...king noises when the liner and the shelves hit each other due to the fluctuation of the inside air pressure upon door open close Also these noises occur when the liners and the shelves hit each other as the liners expand and contract due to the temperature change in both of the compartments Check the clearance between the selves and the liners Freezer Shelves Remove the trim shelves already attach...

Page 201: ...And it gets worse when the refrigerant does not flow freely What is the solution for the compressor noises For new refrigerators Check if the refrigerator is leveled Check if the refrigerator wobbles by shaking with hands Check if there is enough clearance at the back of the refrigerator for the ventilation of the machine compartment If there is not enough clearance or it is blocked by things such...

Page 202: ...e compressor is dislocated due to impact during its transportation such as moving in Check if it s dislocated when it is more noisy after moving in During the comp start up iron friction noises occur What causes them The reciprocation piston could get worn out or inner components could get dislocated What can be checked when the unit sends out noises 1 Check its symptoms and patterns 2 Check if th...

Page 203: ...e level and explain to them that it does not affect its power consumption that much when its temperature setting is adjusted to one or two step lower Why is the food melt even though the display of the freezer compartment shows 4Ԭ Check the compartment temperature with a thermometer If it is considered to be low cooling When the BLDC motor fan does not rotate because its restriction is not picked ...

Page 204: ...ressor So please wait until it starts operating Why does it send out Ding Dong or alarm sounds with the doors closed Check if the food sticks out preventing the doors from closing properly If it send out the above sounds with the door closed well the door switch may not have been pressed down completely So make sure for the door switches to be pressed completely Still if it does not stop going off...

Page 205: ...ttom of the compartments Put the food sending out much smell in an airtight bag or container Open the door and ventilate it Also clean liners shelves containers and door bins What is the cause and its counter action for chemical smells with new products During its delivery to customers chemical smells from various components could build up inside of the compartments So please let the doors open fo...

Page 206: ... it in warm water more than 4 hours After drying it in sunlight put it back to its location 4 Throw away the smell soaked plastic bags and put the food in new ones What causes the funny smell in water When it tastes and smells funny It tastes funny even though it does not smell funny It could happen when remnants of the water filter or organics have been built up in the water tank So replace the w...

Page 207: ... BLACK PCM CABI BLACK EMBO WP DOOR SNOW WHITE CABI SNOW WHITE EMBO RS DOOR REAL STS UNCOATED CABI NOBLE STS EMBO PN DOOR Platinum Inox CABI NOBLE STS EMBO SUB OPTION AA 1st Generation AB 2nd Generation made in korea AC 2nd Generation made in mexico BUYER NAME AB 9 3 Model name nomenclature 9 Reference Information To do list https appliancetechmanuals com ...

Page 208: ...The End Thank you https appliancetechmanuals com ...

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