Samsung RF18A Series Service Manual Download

Page: 49 / 111

DISASSEMBLY AND REASSEMBLY

This document cannot be used without Samsung's authorization.

4-19) Evaporator FRE

Part Name

How To Do

Descriptive Picture

Evaporator

FRE

1. Disconnect the housing wiring connector.

(Refer to the picture)

2. Cut the Evap Pipe and Suction Pipe welded

points. Then, remove the evaporator by pulling

the lower part of the evaporator out while

lifting it up.

3. If you want Assemble, do reverse this process.

When disassembling, make sure the unit turned off.

If you want to assembly, follow the reverse order.

Summary of Contents for RF18A Series

Page 1: ...GERATOR CONTENTS 1 PRODUCTINFORMATION 5 2 PRODUCTSPECIFICATIONS 9 3 FUNCTIONS FEATURES 26 4 DISASSEMBLYAND REASSEMBLY 28 5 CHECKTHE INSTALLATION STATUS 63 6 SELF DIAGNOSIS TROUBLE SHOOTING 86 7 PCB DIAGRAM 101 8 WIRING DIAGRAM 103 9 BLOCKDIAGRAM 104 10 REFERENCE INFORMATION 105 RF18A51 RF20A51 RF44A50 RF50A50 RF49A50 RF49A51 RF57A50 RF57A52 RF44A52 RF50A52 RF49A52 SERVICE Manual ...

Page 2: ...art in anyform whatsoeverwithout the written permission of the SAMSUNG ELECTRONICS Company Samsung is not liable forany damage to product any injury orany otherproduct safety issue caused by any attempt to repairthe product which does not carefully follow these repairand maintenance instructions orcarried out by a non authorized service provider self repairornon professional repairof the product A...

Page 3: ...Door Hinge Up 29 4 3 RefrigeratorDoor Hinge Mid 30 4 4 RefrigeratorDoor Hinge Up 31 4 5 FreezerDoor 32 4 6 Gasket 33 4 7 FreezerDoorSwitch 34 4 8 RefrigeratorLight 35 4 9 TOP TABLE With SensorTemp 37 4 10 FreezerLight 38 4 11 Glass shelves 39 4 12 Drawer 39 4 13 DoorBins 42 4 14 COVER EVAP REF 43 4 15 COVER EVAP REF With SensorTemp 44 4 16 EvaporatorREF 46 4 17 Evap Sensor REF 47 4 18 COVER EVAP F...

Page 4: ...self diagnosis 86 6 2 IF FAN does not operate 89 6 3 When ICE MAKER FZ does not operate OPTION 91 6 4 If defrost does not operate F R DEF Heater 92 6 5 When Poweris not applied 93 6 6 When Compressordoes not run InverterCOMP 94 6 7 When alarm sounds continuouslywithout stop related with buzzersound 95 6 8 When the InnerPanel PBA does not operate normally 97 6 9 When refrigeratorROOM Lamp does not ...

Page 5: ...ents insulation seals etc Afterrepair Ensure the product is fullyreassembled It should be returned to the previous state with all parts and covers correctly secured in position Check out the surrounding conditions Advise customerto change the location if the fridge is located in humid wet place orthe installed location is unstable In to prevent electric shock the appliance must be properlyearthed ...

Page 6: ...shock Warning Warning Caution Caution Unplug Use the rated components on the replacement Check the correct model rated voltage rated current operating temperature and so on On repair make sure that thewires such as harness are bundled tightly Bundle tightlywires in ordernot to be detached by the external force and then not to be wetted Check if there is anytrace indicating the permeation ofwater I...

Page 7: ...ed in the refrigerator Do not allowusers to store articles on the product Opening orclosing the doormaycause things to fall down which maycause injury Prohibition Warning Caution Do not allowusers to disassemble repairoralter It may cause fire orabnormal operation which leads to injury Do not disassemble Do not allowusers to plug several appliances into the same power receptable Maycause abnormal ...

Page 8: ...at is the same height as the rest of the flooring This surface should be strong enough to support a fullyloaded refrigerator orapproximately 660lbs 299kg FLOORING Protect the finish of the flooring Cut a large section of the cardboard carton and place underthe refrigeratorwhereyou areworking When moving be sure to pull the unit straight out and push back in straight MOVING ...

Page 9: ...orators Given this independent system the freezerand the refrigeratorare cooled individually as required and are therefore more efficient Food odorfrom the refrigeratordoes not affect food in the freezerdue to separate airflow circulation 2 1 Introduction of Main Function 2 PRODUCTSPECIFICATIONS Changing Items Image Feature Internal Display The display change more widerand apply Blue LED lighting ...

Page 10: ...e Standardization ImprovementofDuctinFridgeRoom Ducttop extrusion Flat structure FDR Duct standardization Fridge RoomADADisplay TopTable R LinersideADA displayapplied ChangingtheGuard Panel Opaque PP GPPStransparent Guard quantitychange 8 6pcs Depth increase upper middle 15mm PanelV F newproduction TopTableDisplaydelete AddWiFi N America UAE Kuwait Add temperature and humiditysensor AutoIceMaker D...

Page 11: ...ght Set 220 lb 100 100kg 101kg Packing 220 lb 100 107kg 108kg Packing Width 34 5 8 880mm 880mm Depth 301 2 776mm 776mm Height 75 1906mm 1906mm Compressor NN34M9112ARTT3 NN34H9112APTT3 RatedVoltage and Frequency 115V 60Hz 230V 50Hz 220 240V 50Hz 220 240V 50Hz Cooling Features Cooling Twin Cooling Plus No Frost Refrigerant R 600a Energy E Star ISO F 2 5star ISO F 2 5star Exterior Feature Display ADA...

Page 12: ...e Fridge Shelf Ref 2EA GLASS 2EA GLASS 2EA GLASS CoverVeg 1EA GLASS 1EA GLASS 1EA GLASS Veg Box 2EA 2EA 2EA WaterTank Yes Numberof DoorBin 4 4 4 Gallon DoorBin 2 2 2 Lighting Top LED Top LED Top LED PowerCool Function Yes Yes Yes ETC DoorAlarm Yes Yes Yes WiFi Embedded Yes Digital Inverter 10y swarranty Yes Yes Yes Noise level dB A 40dBA 40dBA 40dBA Sabbath Mode Yes ...

Page 13: ...kg Packing Width 34 5 8 880mm 880mm 880mm Depth 321 2 826mm 826mm 826mm Height 75 1906mm 1906mm 1906mm Compressor NN34M9112ARTT3 NN34H9112APTT3 RatedVoltage and Frequency 115V 60Hz 220V 50Hz 230V 50Hz 115V 60Hz 110V 60Hz 127V 60Hz 220 240V 50 60Hz Cooling Features Cooling Twin Cooling Plus No Frost Refrigerant R 600a Energy E Star ISO F 2 5star ISO F 2 5star ISO F 2 5star Exterior Feature Display ...

Page 14: ...ASS 2EA GLASS 2EA GLASS 2EA GLASS CoverVeg 1EA GLASS 1EA GLASS 1EA GLASS 1EA GLASS Veg Box 2EA 2EA 2EA 2EA WaterTank Yes Numberof DoorBin 4 4 4 4 Gallon DoorBin 2 2 2 2 Lighting Top LED Top LED Top LED Top LED PowerCool Function Yes Yes Yes Yes ETC DoorAlarm Yes Yes Yes Yes WiFi Embedded Yes Yes Digital Inverter 10y swarranty Yes Yes Yes Yes Noise level dB A 40dBA 40dBA 40dBA 40dBA Sabbath Mode Ye...

Page 15: ...kg 98kg Packing 106kg 106kg Packing Width 880mm 880mm Depth 826mm 826mm Height 1906mm 1906mm Compressor NN34H9112APTT3 RatedVoltage and Frequency 220V 50Hz 220V 50Hz Cooling Features Cooling Twin Cooling Plus No Frost Refrigerant R 600a Energy ISO F 2 5star ISO F 2 5star Exterior Feature Display ADA ADA Handle Recessed Recessed WaterDispenser Yes Fingerprint resistant Yes Yes Interior Feature Free...

Page 16: ...nterior Feature Fridge Shelf Ref 2EA GLASS 2EA GLASS CoverVeg 1EA GLASS 1EA GLASS Veg Box 2EA 2EA WaterTank Numberof DoorBin 4 4 Gallon DoorBin 2 2 Lighting Top LED Top LED PowerCool Function Yes Yes ETC DoorAlarm Yes Yes WiFi Embedded Digital Inverter 10y swarranty Yes Yes Noise level dB A 40dBA 40dBA Sabbath Mode Yes Yes ...

Page 17: ... 1min Defrost Sensor F R Defrost Sensor Model THERMISTOR DKST1329 SPEC 5 0 at 77 25 FRE REF Bimetal Rated AC125V 6 or10A AC 250V 3 or5A Operating temperature OFF 140 60 ON 104 40 FRE REF Thermal Fuse Rated AC 250V 10A Operating temperature OFF 228 2 230 109 110 Electric Components Defrost Heater FRE Heated at F Defrost AC120V 230W AC 230V 230W Defrost Heater REF Heated at R Defrost AC115V 100W AC ...

Page 18: ...ater Heated at Case Dispenser Parallelwith French Heater AC120V 2W AC230V 2W French Heater Heated at French AC120V 10W AC 230V 10W WaterPipe Heater Heated atWaterPipe WaterTank Heater Ice MakerHeater Ice Room Heater Protectorof FRE REF Defrost Heater Bimetal AC125V 6 or10A AC 250V 3 or5A OFF 140 F 60 ON 104 F 40 Thermal Fuse AC 250V 10A OFF 228 2 230 109 110 MotorBLDC FRE DC12V BLDC Box Fan 92mm 1...

Page 19: ...749 mm 1749 mm Overall Height D 1776 mm 1776 mm Model RF18 RF44 RF50 RF20 RF49 RF57 01 50 mm 50 mm 02 135 135 03 1393 mm 1393 mm 04 291 mm 291 mm 05 811 mm 811 mm 06 625 mm 675 mm 07 31 5 mm 31 5 mm 08 1056 mm 1101 mm 09 1082 mm 1132 mm The measurements in the table above may differslightlyfrom the actual measurements depending on the measuring and rounding method Model RF18A5 RF44A5 RF50A5 RF20A5...

Page 20: ...20 ProductSpecifications This document cannot be usedwithout Samsung s authorization 2 5 Optional Material Specification Photograph Part Name Part Code AMOUNT ASSY INSTALL ACCESSORY DA99 03490W 1 ...

Page 21: ...uthorization 2 6 Refrigerant Route in Refrigeration cycle Hot Pipe Comp Condenser Dryer R Evaporator F Evaporator Suction Pipe Suction Pipe Connect Suction Compressor Condenser Hot Pipe Dryer R Capillary R Evaporator F Evaporator Suction Pipe Connect Suction Pipe Compressor ...

Page 22: ...22 ProductSpecifications This document cannot be usedwithout Samsung s authorization 2 7 Principle Of Freezer Ref EVAP Pressure 0 psi Temp 18 ...

Page 23: ...upplyit to the evaporator A To evaporate more lowertemperature in case of evaporation B It flows to the evaporatorwithout back flowing to condenser if compressorstops and the difference of pressure between high pressure and lowpressure is small so it is easyto operate the compressoragain 2 Outline A Thickness 0 019 inch B Length It is changeable to lowtemperature and pressure 142 71 psi depends on...

Page 24: ...inate the foreign substance Influence of moisture Moisture precipitation Blocked byice Refrigerant and reaction Life reduction of oil Acceleration of oxidization Copperplating phenomenon Gas dissolution bythe interaction of synthetic insulating material insulator Influence offoreign substance Increase of condensed temperature Increase of temperature Decrease of cooling efficiency Shorten the life ...

Page 25: ...ot be usedwithout Samsung s authorization 2 9 Refrigeration Cycle Type Compressor Condenser Hot Pipe Dryer Capillary Tube Refrigerator Evaporator Freezer Evaporator Suction Pipe Compressor HMCycle 2 10 CoolingAirCirculation Refrigerator Freezer ...

Page 26: ...3 C PowerFreeze Whenthe Freezertemperature indicatorblinks pressthe keyto set it asfollows PowerFreeze 23 C 22 C 21 C 20 C 19 C 18 C 17 C 16 C 15 C Fridge PowerFreeze speeds up the freezing process at maximum fan speed The freezerkeeps running at full speed for50 hours and then returns to the previous temperature To freeze large amounts of food activate PowerFreeze forat least 20 hours before putt...

Page 27: ... turns on To enable ice making you must turn the ice makeron 05 Peak Demand Optional The Peak Demand has 2 indicators to indicate its operating status When the Peak Demand operates the corresponding indicator turns on When the Peak Demand is turned off the corresponding indicator turns on To enable ice making you must turn the ice makeron 06 Buttons When the displayis off tap anybutton towake up t...

Page 28: ...sed by current leakage from the refrigerator Do not put bottles orglass containers in the freezer When the contents freeze the glass may break and cause personal injury Do not storevolatile orflammable substances in the refrigerator The storage of benzene thinner alcohol ether LP gas and othersuch products may cause explosions Required Tools IMAGE ITEM USE Phillips Head Driver Use forassembling an...

Page 29: ... the refrigerator Disassembly 3 Disconnect electric wire of the doorand cabinet Remove the screwthat holds the ground wire with a philips screwdriver Disassembly 4 Remove the 3 hex bolts that hold the hinge on the top of the refrigeratorwith the 7 16 socket wrench Disassembly 5 Separate the Hinge from the door Disassembly 6 Lift the doorstraight up to remove Be careful not to drop orscratch the do...

Page 30: ...ve the mid left and right doorhinges 1 2 Aassembly 1 Assemble the mid left and right doorhinges With a 3 16 0 2 in Hex wrench assemble the 2 flat head bolt With a Philips head screwdriver assemble the screw Make sure to assemble the hinges in the following orderto prevent them from being twisted BOLT SCREW 1 2 Aassembly 2 Assemble the cap on the middle hinge Aassembly 3 Assemble the dooron mid hin...

Page 31: ... hinge on the top of the refrigeratorwith the 7 16 socket wrench Aassembly 6 Connect electric wire of the door cabinet Assemble the screw that holds the ground wire with a philips screwdriver Aassembly 7 Connect electric wires on the top of the refrigeratorwith Top Table Aassembly 8 Assemble Top Table with 3 screws Top Table 4 4 RefrigeratorDoor Hinge Up When disassembling make sure the unit turne...

Page 32: ... bolts from both sides with a socket wrench 7 16 Disassembly 3 Lift up the freezerdoorfrom the rails Be careful not to drop and scratch the freezer door Assembly 1 Assemble the dooron rail Be careful not to drop and scratch the freezer door Assembly 2 Assemble the 4 hex head bolts from both sides with a socket wrench 7 16 Assembly 3 Assemble the drawerbox When disassembling make sure the unit turn...

Page 33: ...escriptive Picture Gasket Disassembly 1 Pull the 4 corners of gasket 2 Pull the centerof gasket Pull the cornerof Gasket Fre Ref Assembly 1 Push the 4 corners of gasket 2 Push the centerof gasket Fre Ref Pushthe cornerof Gasket When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 34: ...ezer DoorSwitch Disassembly 1 Remove1 screw at the lowerpart of the Freezer Disassembly 2 Separate the Cap Disassembly 3 Separate the Housing Assembly 1 Assemble the Housing Assembly 2 Assemble the Cap Assembly 3 ssemble1 screw at the lowerpart of the Freezer When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 35: ...n linerand coverlamp 3 points Disassembly 2 Remove the lamp coverby pulling it down as pushing the front of lamp cover Disassembly 3 Slightly lift the socket side Disassembly 4 Slide out the led lamp from the cover Disassembly 5 Push the hook triggerand pull the connector to separate Assembly 1 Connect the connectorwith LED socket pulling the connector When disassembling make sure the unit turned ...

Page 36: ...ed lamp to coverlamp LED must be located underthe hook feature of cover lamp Assembly 3 When assemble slightly bend up the led socket side and slide in the led lamp Assembly 4 Locate the coverlamp at linerand hook the back side hook first then hook the front 3 points and push up When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 37: ...2 Separate wire from top table hook and then disconnect wire housing Disassembly 3 Pull the wire out to sepa rate top table structure Assembly 1 Slide in the sensorto top table assembly structure Sensormust be located underthe hook feature of top table Sensorhuminity Toptable Assembly 2 Connect sensorwire with top table sub wire and then fix the wire in top table hook When disassembling make sure ...

Page 38: ...ure Freezer Light Disassembly 1 Remove the CoverLamp by a Flat Head Driver Disassembly 2 Separate the Led Lamp from the wire Assembly 1 Connect the Wire Led Lamp Assemble the Led Lamp with Cap DoorLow Assembly 2 Assemble the CoverLamp on Cap DoorLow When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 39: ...helf if it is not slid out well lift it up slightly and pull out again Part Name HowTo Do Descriptive Picture CASEVEG 1 Hold the handle and pull out as much as possible 2 Then you take it up and disassemble it When disassembling make sure the unit turned off When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order Ifyouwant to assembly followthe reverse order ...

Page 40: ...ly 1 Open the freezerdooras much as possible Disassembly 2 Hold the handle and lift it up Disassembly 3 and then you take it up and disassemble it Assembly 1 Hold the handle and push it in Assembly 2 Place it on the TRAY DRAWER Assembly 3 Check if it works When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 41: ...much as possible Disassembly 3 Hold the back of the BOX and lift it up Disassembly 4 Turn the box upside down and disassemble it as it is Assembly 1 Insert the TRAY DRAWER BOX from the front Assembly 2 Place the back of the TRAY DRAWER BOX 3 Check if the ribs are assembled into the rail groove Assembly 4 Check if it works When disassembling make sure the unit turned off Ifyouwant to assembly follo...

Page 42: ...Bins 1 Remove DoorBins from DRAWER REF Referto the picture 2 Remove DoorBins from BAG PE Referto the picture DoorBins 3 Lightly press and assemble to fit doorbins position Referto the picture Dispenser DoorLeft DoorRight No Dispenser DoorLeft DoorRight When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 43: ... COVER EVAP REF Part Name HowTo Do Descriptive Picture COVER EVAP REF Disassembly 1 Unscrewtwo screws And remove the hook by pulling it from the lowerpart and pushing the coverdown Referto the picture When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 44: ...COVER EVAP REF Disassembly 2 disassemble the SensorTemp Housing Disassembly 3 Rip a SEAL in half SEAL Disassembly 3 Unscrew a screw and disassemble the Case motor CASEMOTOR Disassembly 4 Unwind the SensorTemp Wire YellowWire Assembly 5 wind the SensorTemp Wire YellowWire When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 45: ...6 Screw a screw and assemble the Case motor CASEMOTOR Assembly 7 Attach a SEAL in half Assembly 8 Assemble the SensorTemp Housing Assembly 9 Screw two screws And assemble the hook by pulling it from the lowerpart and pushing the coverdown Referto the picture When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 46: ...REF 1 Disconnect the housing wiring connector Referto the picture 2 Cut the Evap pipe and Suction pipe Capillary Tube Then remove the evaporatorby Lifting the evaporatorup and pulling the bottom out Referto the picture 3 If you want Assemble do reverse this process When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 47: ... HowTo Do Descriptive Picture Evaporator REF 1 Remove the hosing connectorat the left 2 Cut the Cable Tie 3 Remove SensorHousing from TPA Then Remove the Fixerwire and Fixersensor 4 If you want Assemble do reverse this process When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 48: ...ove the hook by pulling it from the lowerpart and pulling the coverside Referto the picture Disassembly 2 Disassemble the Fan MotorHousing Assembly 3 Assemble the Fan MotorHousing Assembly 4 Screw two screws And assemble the hook by pushing it from the lowerpart and pushing the coverdown Referto the picture When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse or...

Page 49: ...ator FRE 1 Disconnect the housing wiring connector Referto the picture 2 Cut the Evap Pipe and Suction Pipe welded points Then remove the evaporatorby pulling the lowerpart of the evaporatorout while lifting it up 3 If you want Assemble do reverse this process When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 50: ...ive Picture Evaporator FRE 1 Remove the hosing connectorat the left 2 Disassemble SensorHousing from TPA then cut the Cable Tie 3 Cut the Cable tie that tie Accumulatorand Sensor 4 Remove the sensortemp If you want Assemble do reverse this process When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 51: ...t Samsung s authorization 4 21 Ice Maker Freezer OPTION Part Name HowTo Do Descriptive Picture Ice Maker FRE 1 Remove the 2 screw 2 Separate the HOUSING of the Ice Maker When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 52: ...y 1 Remove Bolts using screwdriver 2ea Disassembly 2 Put yourhand inside the coverand pull it forward Disassembly 3 Disassemble the assy coverdispenser Assembly 1 Locate the assy coverdispenserat the dispenser Assembly 2 Press yourhand on the back to get hooks 3 Assemble screw bolts 2ea When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 53: ...ation 4 23 WaterTank OPTION Part Name HowTo Do Descriptive Picture WaterTank 1 Hold both sides of the watertank with hands and pull it forward 2 If you want Assemble do reverse this process When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 54: ...ve Picture SensorIn Freezer Disassembly 1 Separate CoverSensoron Linerby using Flat Head Driver Disassembly 2 Pull out Coverand Wire Harness Disassembly 3 Disconnect Connector Disassembly 4 Pull out Sensorfrom Cover Assembly 1 Put sensorin Cover When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 55: ...o Descriptive Picture SensorIn Freezer Assembly 2 Connect Sensorto Wire Harness Assembly 3 Put Connectorand Wire In Liner Assembly 4 Assembly Coverto Liner Assembly 5 Check Assembly CoverFinally FrontView RearView When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 56: ...Remove 5 screws from the compressorcover 2 Disengage the housing connector Referto the picture 3 Remove a screwwhich combine Fan and TRAY DRAIN WATER 4 Cutting the SEAL SUPPORTMOTOR 5 Pull the Fan and disassemble from TRAY DRAIN WATER And then tilt Fan and pull it out When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 57: ...rupt the Fan afterthe Bending process NG OK Compressor 4 Check Service Ring specifications of the Pipe 5 Applying Lokprep and connecting the Service Ring_1 Before applying Lokprep remove any foreign substances on the pipe surface with Sand Paper Apply 0 05g of Lokprep onto the Comp Pipe Insert the Service Ring in the Comp Pipe and fasten it by screwing it 360 2 times CAUTION This appliance contain...

Page 58: ...nect Suc pipe and fasten it by screwing it 360 2 times NG OK 7 Installing manual Lokring Tool Install manual Lokring Tool on the Service Ring 8 Fastening Service Ring Press the ring with the Lokring tool When fastening press the ring multiple times slowly untill the ring is fastened in the middle DO NOTPRESS ITONCE TO THE END 9 Check the Service Ring connection status When disassembling make sure ...

Page 59: ...ithout Samsung s authorization 4 27 Machine Compartment Part Name HowTo Do Descriptive Picture RelayO L 1 Remove CoverRelay 2 Disassemble Housing Connectorfrom Comp When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 60: ...nplug the powercord before performing the operation above CoverPCB Disassembly 2 Unsnap connectors of PCB 3 Push 2 hooks to upside and pull out PCB outside Assembly 1 Insert PCB low side in the 2ea fixer 2 Push 2 hooks to upside and push PCB in the hooks 3 Snap the connectors of PCB CAUTION Be sure to unplug the powercord before performing the operation above When disassembling make sure the unit ...

Page 61: ...mble CoverPCB and fasten screw 4ea with the screwdriver Part Name HowTo Do Descriptive Picture Fuse Block 4 Fuse Block PBA Press the locking hook down and remove the Fuse Block PBA by pulling it out Referto the picture When disassembling make sure the unit turned off When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order Ifyouwant to assembly followthe rever...

Page 62: ... Display 1 Remove the Inlay 2 Push between RELECTOR and LINER with screwdriver Insert the screwdriververtically to the end Push Point 3 Tilt the screwdriverdown and pull the display Tilt Down 4 Disconnect Housing 5 If you want Assemble do reverse this process When disassembling make sure the unit turned off Ifyouwant to assembly followthe reverse order ...

Page 63: ...ngineerMode No Name 1 Test Mode 3 Self diagnostic Function 6 MACAddress DisplayMode Wi Fi Only 7 Load Condition DisplayMode 9 Option Setting Mode Mode list selectable in EngineerMode If any key on the front of panel is pressed within15 seconds afterthe test mode it will be operated as below sequence Manual Operation1 FF Manual Operation2 OF r Manual Defrost of fridge compartment rd Manual Defrost ...

Page 64: ...taneouslyfor6seconds AndtheControlDisplaywillblinkwithanintervalof0 5seconds Inthatcase youmaytakeyourfingersoffbothbuttonsandpressthe buttontoentertheEngineerMode AfterenteringEngineerMode pressthe or keytomakethenumber 1 blinks Then pressthe O buttontoentertheTestMode 1 TESTMode Entering Enterthe EngineerMode ...

Page 65: ...d at the moment of compressoroff overload could be occurred DISPLAY Operating Time Comp Fan Freezer Fridge C F R FF 24Hr ON ON ON The Tempeature is controlled OF r 24Hr ON ON ON The Tempeature is controlled 2 4 If manual operation works compressor f fan operate continuouslyfor24 hours and fresh food compartment will be controlled bythe setting temperature 2 5 When the manual operation runs setting...

Page 66: ...e Display Panel At this time FR Defrost will be performed at the same time 3 3 At this time it will send out Beep sound for2 seconds and then it will perform Forced F R Defrost while sending out 0 5 sec On and 0 5 sec Off sound 4 Test cancel mode 4 1 During the simultaneous defrosting of fresh food and freezercompartments if the display panel change to the test mode and test button is pressed one ...

Page 67: ...link for0 5 sec At this moment there is no beep sound Referto self diagnostic CHECK LIST 1 3 Self diagnostic button is recognized onlywhen the erroris displayed by the bad sensor Display does not operate normally but temperature control will be controlled bythe emergency operation 1 4 When the erroris detected by self diagnosis the errorcan be canceled automatically if all troubled sensors are cor...

Page 68: ...n 2 1 If are pressed simultaneously for6 seconds during normal operation the temperature setting displaywill operate for4 seconds ON OFF 0 5sec each In that case you may take yourfingers off both buttons and press the button to enterthe EngineerMode After entering EngineerMode press the or key to make the number 3 blinks Then press the O button to enterthe self diagnosis function 2 2 At this momen...

Page 69: ...NPCBCN51 14 13 shallbebetween4 5V 1 0V 2 Freezer compartment defrosting sensor ThevoltageofMAINPCBCN51 5 7 shallbebetween4 5V 1 0V 4 Fridge compartment defrosting sensor ThevoltageofMAINPCBCN51 12 13 shallbebetween4 5V 1 0V 5 External air sensor ThevoltageofMAINPCBCN51 4 6 shallbebetween4 5V 1 0V 6 Ice Maker Freezer Sensor Error OPTION ThevoltageofMAINPCBCN30 9 11 shallbebetween4 5V 1 0V 8 Humidit...

Page 70: ...Resistancevalueisvariedbyinput power 0ohm heatershort ohm wire bimetalopen Mustpower off 24 FridgeDefrostingError AfterseparatingMAINPCB70wirefrom PCB resistancevaluebetweenCN70 5 1 shallbe132ohm 7 Resistance valueisvariedbyinputpower 0ohm heatershort ohm wire bimetalopen Mustpower off 25 IceMaker Freezer FunctionError OPTION AfterchangingtheIceMaker F plug therefrigeratorpowercodeagain and checkt...

Page 71: ...y Ifthereisnotaproblem it isdesirabletoreplaceMainandWiFi PCBWiththeoscilloscopeafteracable problemconfirming 52 TheFreezercompartment abnormalhigh temperatureindicator blinks Checkifthedoorhasbeenopenfora longtimeorifhotfoodhasbeenstored inthecompartment Ifthereasonfor theerrorisremoved theerrorcode disappearsafterapre determined periodoftime TheFridgecompartment abnormal high temperature indicat...

Page 72: ...r CompressorlockingError ChecktheCompressorandtheCycle Checkthecompressorwireconnections Complow voltageerror Checktheinputvoltage AC60V InputPowerAC110 127V AC106V InputPowerAC220 240V CheckPCBbottomsidesolderingstate Compover voltageerror Checktheinputvoltage AC155V InputPowerAC110 127V AC310V InputPowerAC220 240V CheckPCBbottomsidesolderingstate CompIPMShutDown Error Checkthesolderingstatusofth...

Page 73: ...he load that micom signal is outputting However It means that micom signal is outputting it does not mean whetherload is operating ornot That is to saythat though load operation is displayed load could not be operated by actual load errororPCB relay erroretc This function would be applied at A S 4 Load condition displayfunction will maintain for30 seconds and then normal condition will be returned...

Page 74: ...f the FreezerIce maker s bucket is full the corresponding LED is blinked 10 FreezerIce Pipe Heater R 10 f In the case of FreezerIce Pipe Heateroperation the corresponding LED is blinked 11 French Heater F 10 g In the case of the French heateroperation the corresponding LED is blinked 12 Comp F 1 a In the case of the Comp operation the corresponding LED is blinked 13 F FAN HIGHEST F 1 b c In the ca...

Page 75: ...de will be canceled 3 If Cooling Off mode is selected blinks O FF on the temperature setting display of the panel and it indicates the refrigeratorhas entered the Cooling Off mode 4 During Cooling Off mode Fridge orFreezercompartments sensors are higherthan149 F 65 C Cooling Off mode will be canceled automatically and freezing operation will be returned There is no buzzersound when the Cooling Off...

Page 76: ...nceled 1 3 If Exhibition mode is selected displays on or oF for5 seconds on the temperature setting displayof the panel and it indicates the refrigeratorhas entered orexited the Exhibition mode After5 seconds the displaypanelwillwork normally 1 4 During Exhibition mode if fridge orfreezercompartments sensors are higherthan149 F 65 C Exhibition modewill be canceled automaticallyand freezing operati...

Page 77: ...gineer Mode Afterentering EngineerMode press the or keyto make the number 9 blinks Then press the O button to enterthe Option Setting Mode KEY operation method forchanging to option mode Keyare pressed simultaneouslyfor6 seconds And the Control Displaywill blinkwith 0 5 second interval for4 seconds In that case you maytakeyourfingers off both buttons and press the button to enterthe EngineerMode A...

Page 78: ...without Samsung s authorization KEY control method afterconverting to option mode Keycontrol in option mode O Code Change Key Rotation Reference Value down key Reference Value Up key ReferenceValue Code ReferenceValue Up Code Change Rotation ReferenceValue Down ...

Page 79: ...means that standard temperature is controlled 4 2 C less than setting temperature in the display Basically all the data in option has cleared from the factory Therefore almost all setting value are 0 But some setting values could be changed forthe purpose of improving performmance NOTE You need to check the product manual and or specification 2 Afterchanging to the option mode fresh food compartme...

Page 80: ...ime defrost return time hysteresis by temperature notch gap bytemperature etc 5 Option function is set in the EEPROM at shipping process in the factory You would betternot to change the option of yourown Completing the setting is that option function return to normal display after20 seconds Do not turn off the appliance before returning to the normal display mode Option setting function exists in ...

Page 81: ...ure to 4 2 C 5 1 7 Option TABLE Set item FreezerTemp Shift Reference Value Fridge Room 7 SEG 0 Set item fresh food Temp Shift 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 Setting value Temp compensation FZ compartment Code ...

Page 82: ... MakerDropping Standby Time Reference Value Fridge Room 7 Seg 3 Set item Ice MakerDropping Temperature Reference Value Fridge Room 7 Seg 4 Setting value Standby Time FreezerRoom 7 Seg Code 0 58 min 1 57 min 2 56 min 3 55 min 4 54 min 5 53 min 6 52 min 7 51 min 8 50 min 9 49 min 10 48 min 11 47 min 12 46 min 13 45 min 14 59 min 15 60 min Setting value Dropping Temperature FreezerRoom 7 Seg Code 0 1...

Page 83: ...e changing table of freezercompartment When the Freezerworks as a Fridge Mode ex If you want to change the dispenserheateroperation rate to 20 Set item DispenserHeaterRate Reference Value Fridge Room 7 SEG 19 Set item FreezerTemp Shift Reference Value Fridge Room 7 SEG 31 Setting value Rate change FZ compartment Code 0 0 0 1 Sub Heater 20 operation up to100 C Fan C Fan turn on after10 minutes dela...

Page 84: ... 8 2 802 12749 2 35 6 2 751 12233 3 37 4 2 700 11741 4 39 2 2 649 11271 5 41 2 599 10823 6 42 8 2 548 10395 7 44 6 2 498 9986 8 46 4 2 449 9596 9 48 2 2 399 9223 10 50 2 350 8867 11 51 8 2 301 8526 12 53 6 2 253 8200 13 55 4 2 205 7888 14 57 2 2 158 7590 15 59 2 111 7305 16 60 8 2 064 7032 17 62 6 2 019 6771 18 64 4 1 974 6521 19 66 2 1 929 6281 20 68 1 885 6052 21 69 8 1 842 5832 22 71 6 1 799 56...

Page 85: ... 422 1690 40 2090 428 1712 41 2116 433 1733 42 2142 438 1754 43 2168 444 1776 44 2194 449 1797 45 2220 454 1818 RH Output mV A D 10bit A D 12bit 46 2246 460 1839 47 2272 465 1861 48 2298 470 1882 49 2324 475 1903 50 2350 481 1925 51 2376 486 1946 52 2402 491 1967 53 2428 497 1989 54 2454 502 2010 55 2480 507 2031 56 2505 513 2052 57 2530 518 2072 58 2555 523 2093 59 2580 528 2113 60 2605 533 2133 ...

Page 86: ... WHT MAIN PCB ConnectorCN30 9 WHT and 11 Pinfrom PCB normal and 11 Pinfrom PCB normal Is inputvoltage of Is inputvoltage of IC01 MICOM 13 normal IC01 MICOM 13 normal Start NO YES YES YES YES NO NO 0 6V Measurement 4 6V NO Notroublewith PCB andtemperature sensor Recheckthe bad contact ofthe connection ICEMaker MeasuringvoltageofIC01MICOM 12 CN30 9 WHT and 11 Pin CN30 fromPCBtypicalGroundpartaresimi...

Page 87: ...51 4 CN51 6 measuringresistancevalue 0Ω Shorttrouble Ω Opentrouble Refertocircuitdiagraminthemanual Sensor MICOM Connector number R Connector CN51 14 W BRN and 13 Pin CN51 from PCB typical Ground F Connector CN51 9 BLU and 11 Pin CN51 from PCB typical Ground R DEF Connector CN20 12 W BLU and 13 Pin CN51 from PCB typical Ground F DEF Connector CN51 5 BLK and 7 Pin CN51 from PCB typical Ground Ambie...

Page 88: ...sturbed solderExchange the PCB NO Notroublewith PCB andtemperature sensor Recheckthe bad contact ofthe connection Start YES YES YES Sensor MICOM Connector number Humidity ConnectorCN51 4 WHT and CN51 8 Pin from PCB typical Ground Voltage measured between 3 5V 1 0V DATA1 Temperaturetable Measuringpointofresistancevalue accordingto Sensor Humidity CN51 4 CN51 8 Resistancevaluewithopened about50Ω 0Ω ...

Page 89: ... BLU and CN 51 25 GRY ForC FAN For R FAN For F FAN In initial powerto appliance the compressorand fans of fresh food freezer compressorfan operate If freezertemperature is sensed of 41 bymomentarypowerfailure fans will operate after7 minutes Repairthe connection of Doorswitch FANwork normally Execute manual operation Recheckafter7minutes Timecouldbedelayed dependingonthetemperatures Ifthetemperatu...

Page 90: ...ed continuously the motorwill be restarted after10 Minutes This function is effectivewhen the normal operation of motorwould be restrained byforeign matters such as ice F FAN pulsevoltage CN51 15 PNK Thevoltage measured around 2 3Vwith multi meterthough thevoltage is veryweak because of pulse signal Displayforcheckingtheself diagnostic function F FAN ERROR C FAN ERROR R FAN ERROR Thevoltage betwee...

Page 91: ...orrotates Operating Status of Micom MIC01 Ready Operation MotorCWRotation IC90 2 0V 5V MotorCCWRotation IC90 4 0V 5V It soperationstatuschangesastheMotor rotatesCWorCCW Micom IC01 Operation Status Stand by Rotation Back Rotation Return Rotation Stand by 14 5V 0V 5V 0V 5V MICOM IC02 Operation Status 13 Test Switch Operation Ready 0V 5V Start Ice Makerrotates when pressingthe Ice Makertesting switch...

Page 92: ... 23kΩ 22 30 52 41kΩ Checkthebimetal heaterdisconnection wiringconnectionetc Refertoself diagnostic functioninthemanual Replacetheapplicablesensor Repairconnectionterminal Manualoperationforacertaintime Manualdefrostingoffreshfoodand freezercompartments operatesimultaneously RefertoTESTModeEntering Normal Checkbimetal heateritself disconnectionetc ReplacefailureRelayor replacePCBASS Y Doesthesystem...

Page 93: ... not applied Start Makesuretheplugisconnected andnotloose Isthepowerplugconnected No Yes ReplacethePCBASSY ChecktheMAINPBA 12V CN04 2 5 5V CN04 2 6 DoestheSMPS delivernormaloutputvoltagesof 12Vand5V No Yes Yes CheckingconnectionofmainPCB Checkingconnectionbetweenupperhingeanddoor CheckingconnectionofdoorpanelPCB DoesthePanelPCB functionproperly 1 ResolderthePCB 2 ReplacethePCBMAIN Isthere anysolde...

Page 94: ...erly ReplaceCOMPASS Y No No 0 800Hz50 DutySignalOutput Checkthenoise Filter PowerCord IsAC115Vappliedto CN10 Makesuretheconnectoris pluggedproperly No No Repairthesensingpart orReplaceMAINPBA No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes WhenForcedOperation modeisactivated COMP operates IsDC15Vappliedto TD505 COMPConnector CN102 isGood IsDC5Vappliedto C125 No COMPASS YisGood F SensorisGood Temperatur...

Page 95: ...ck and replace Panel PBA No Connectoris not inserted Repairdisconnect part Repairwire connection and DoorS W No Yes Yes Yes Yes Yes Is doorclosed completely Iswaterpenetrated intothe doorswitch Isthe door switch unit normal Isthe connectorCN51 inserted correctly Isthe input voltage of main 1 5 changed at door open and close status Door MICOM State Door FZ MICOM 1 FF MICOM 5 Right and Left Close 0V...

Page 96: ...ninnerpanelPBACN01and CabiWireHarnessnormal Istheconnection betweenBUZZERPBACN1andAssyTop TableWireHarnessnormal MAINPCBnormal BUZZERnormal CheckConnectorContactDefect CheckConnectorContactDefect Recheckthebuttonpressing forceandmechanicalproblem Yes No No No Yes Yes Start Buzzeris installed on theAssyTop Table in this model When alarm sounds continuouslywithout stop relatedwith buzzersound ...

Page 97: ...acePanelPCB ChecktheWire Cut andtheWire Short No No No Yes Yes Yes Start Buttonsgetstuck beingpresseddown Buttons get stuck being pressed down Buttons get stuck being pressed down Re assemblePCBASS Yor cleartherestriction Re assemblePCBASS Yor cleartherestriction ReplacePanelPCB ChecktheWireCutandtheWireShort Yes Yes Yes No No No When the Panel PCB buttons do not work When the entire ora certain s...

Page 98: ...hewire Re inserttheconnector No Yes Yes Yes Yes Yes Yes Yes Door MICOMState Door MICOM 5 RightandLeft Close 0V Low Open 5V High MICOMState Door FF FZ 5 1 Close 0V Low 0V Low Open 5V High 5V High Q708 R Q706 F MICOM Q708 R Q706 F 0V Low 0V Low 5V High 11 12V High Doesthe DOORS Wsenseproperly Open Close Istheoutput voltageofMIC01MICOM 5 normal Istheoutput voltagenormal IstheMAIN PCBconnector CN40 CN...

Page 99: ...ormal MAINPCBnormal Needtochecktheotherparts CheckthewirebetweenIcewatervalve MAINPCB Icewatervalveitselfhastroubleorbadcontactofconnector Checktheconnectionhose Normal CheckIcewatervalvehose Checksoldering short ReplacePCB Checksoldering short ReplacePCB Checksoldering short ReplacePCB Checksoldering short ReplacePCB NO YES YES NO NO NO NO YES YES YES 6 10 If ICEWateris not supplied OPTION Checki...

Page 100: ...6 3 Drop the IPM operatingVoltage underDC13 5V 4 Othercases check the COMP cycle etc SPM Fault Abnormal Current Detection 1 Open the COMPwire CN04 2 Bad condition of R1 ex Bad soldering 3 Othercases check the COMP cycle etc MotorLocked OverRPM 1 Operating the locked rotorCOMPwithin 5 second 2 Operating the COMPunder1000 RPM more than 5second 3 Occurthe huge change of inputvoltage in a moment 4 Oth...

Page 101: ... control 4 FAN MOTOR control part To supplythe powerfrom 7V 12Vaccording to the motortypes F R C 5 EEPROM Save and record everykinds of data 6 Micom control the regrigeratorCeramic resonator generate the basic frequencyof Micom operation Reset IC make Micom reset if inputvoltage of Micom is detected less than the specifiedvoltage 7 Operate ICE MAKER supplypowerto MOTOR and sense thevariation of sw...

Page 102: ...102 PCB DIAGRAM This document cannot be usedwithout Samsung s authorization 7 2 ConnectorLayoutwith part position ...

Page 103: ...103 This document cannot be usedwithout Samsung s authorization 8 WIRING DIAGRAM ...

Page 104: ...104 This document cannot be usedwithout Samsung s authorization 9 BLOCKDIAGRAM 9 1 Whole block diagram ...

Page 105: ...FREFlex Energy CMF Buyer code R F 18 A 5 2 0 1 SR AA R REF F FDR 18 18cu ft USA A 2021 5 3DoorFDR NW2 0 NonDisp 0 AutoI M FRE 1 EnergyStar SG AA 20 20cu ft USA 1 NonDisp wifi 1 AutoI M FRE FREConvertible 2 EuropeF AUSTRAILIA 2 5STAR Other Countries SR AZ 44 440L 18cf 2 WaterDisp 2 TwistI M WW BZ 49 490L 20cf 3 WaterDisp wifi 3 TwistI M FREConvertible S9 EM 50 500L IEC B1 CO 57 570L ISOGROSS AP PE ...

Page 106: ...e various accessories are contracting orexpanding according to the temperature of the Refrigeratorinterior 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 Refrigeratorto prevent condensation Is the Refrigeratordoorajar Condensation can occurwhen you leav...

Page 107: ... is a bad smell in the Refrigerator Check forspoiled food Foods with strong odors forexample fish should be tightly covered Clean out yourFreezerperiodically and throw away any spoiled orsuspicious food Frost forms on the walls of the Freezer Is the airvent blocked Remove any obstructions so aircan circulate freely Allow sufficient space between the foods stored forefficient aircirculation Is the ...

Page 108: ...id passing noises from the back of the refrigerator Refrigerant goes into the evaporatorvia the capillary tube in which the refrigerant expands as it circulates the cooling cycle At this time the refrigerant is in its liquid state and it starts evaporating as it reaches at the inlet of the evaporator with a biggerdiameter which causes the refrigerant noises And it gets worse when the refrigerant d...

Page 109: ...temperature or replace the thermoistor What is the reason that vegetables get frozen even though the fridge compartmentis set to MIN Replace the fridge thermistorbecause it could be faulty 1st Check if the thermistorworks afterreferring to the self diagnosis checklist on the MAIN PCB cover If the over cooling keeps on even though there is no problem with the above replace it What can be done when ...

Page 110: ... unit Precautions Smells tend to get soaked into the liners orothercomponents If food generating much smell is stored inside it would stick on to the liners and othercomponents and it is so difficult to remove the smell Especially customers should take care in storing smellyfood properlywith its sealing being tight during the early period of the product s use What can be done when the smell keeps ...

Page 111: ...is a propertyof Samsung Electronics Co Ltd Anyunauthorized use of Manual can be punished underapplicable International ordomestic law Europe CIS Mideast Africa gspn1 samsungcsportal com Asia gspn2 samsungcsportal com North Latin America gspn3 samsungcsportal com China china samsungportal com ...

Search results

Summary of Contents for RF18A Series

Reviews:

Related manuals for RF18A Series

Brands by name

Popular brands

Samsung RF18A Series, Service Manual

Search results

Summary of Contents for RF18A Series

Reviews:

Related manuals for RF18A Series

Brands by name

Popular brands