LG GM-B208SS Скачать руководство пользователя страница 27 | Manualshive

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8-2-4 Load / Buzzer Drive & Open Door Detection Circuit

1. Load Drive Condition Check

LOAD TYPE

COMP

NO.12

NO.14

NO.15

NO.13

1V or below

12V

DEFROSTING

HEATER

LAMP

FRENCH DOOR

HEATER 1, 2 /

DEW HEATER

Measurement Location (IC6)

Condition

ON

OFF

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Содержание GM-B208SS

Страница 1: ...CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL REFRIGERATOR SERVICE MANUAL MODELS GM B208SS GM B208SW ...

Страница 2: ...FICATIONS 2 PARTS IDENTIFICATION 3 DISASSEMBLY 3 1 Door 3 2 Replacing Refrigerator Room 3 3 Door Gasket Removal 3 4 Door Gasker Replacement 3 5 Door Alignment 3 6 Fan and fan motor 3 7 Defrost control assembly 3 8 Lamp 3 9 Control Box Refrigerator 3 10 Multi duct 4 ADJUSTMENT 4 1 Compressor 4 2 PTC Starter 4 3 OLP overload protector 4 4 To remove the cover PTC 5 CIRCUIT DIAGRAM 6 TROUBLESHOOTING 6...

Страница 3: ...asket Quantity Lamp Shelf NO FREEZER 1 PLASTIC YES 1 40W BLUE 1FULL 2FIXED GENERAL FEATURES EMBO REFRIGERATOR 08 VISTA 3 LEFT 2 RIGHT I B 1EA OPTIBIN CRISPER HUMIDITY CTL 05 YES 2 40W BLUE 1Fix Full 2Fix non S Proof YES ID Ø 0 75 4 HOURS 7 40 HOURS SHEATH HEATER WATER TRANK HEATER MOLECULAR SIEVE XH 7 TROPICAL T 240 V 50Hz FAN COOLING MICOM CONTROL CYCLO PENTANANE MQ53LAUM PTC STARTING TYPE FIN TU...

Страница 4: ...w The locations of the features shown below may not match your model on some models A B C G H I J E F K D L M N O P A L Digital Sensor Control Filter Inside Durabase Divider Egg Box Refrigerator Door Rack Freezer Light Pull out Drawer B C D F E G H I J K M N O P Ice Tray Optibin Crisper Keeps fruits and vegetable fresh and crisper Chef Fresh Snack Pan Can Dispenser Shelves Refrigerator Light Custo...

Страница 5: ... screws 3 to secure it Make sure the gasket on the door is flush against the cabinet and is not folded Support the door on the handle side while securing And make sure the door is straight and the gap between the doors is even across the front Install the ground screw 6 Connect the door switch wire 2 Tighten the cover screw 1 Left Door Lower the door onto the middle hinge pin 5 Make sure the door ...

Страница 6: ...ntil all clips snap out 3 Remove gasket Pull gasket free from gasket channel on the three remaining sides of door 3 4 DOOR GASKET REPLACEMENT 1 Insert gasket bracket clips 1 Insert gasket bracket edge beneath door frame edge 2 Turn upper gasket bracket spring so that both spring ends are in the door channel 3 Push in clip until you hear it snap securely into place 4 Push in remaining two clips unt...

Страница 7: ...cover and working down snap cover back into door 3 5 DOOR ALIGNMENT If the space between your doors is uneven follow the instructions below to align the doors 1 With one hand lift up the door you want to raise at middle hinge 2 With other hand use pliers to insert snap ring as shown 3 Insert additional snap rings until the doors are aligned Three snap rings are provided with unit 7 Figure 6 Correc...

Страница 8: ... 1 Refrigerator Compartment Lamp 1 Unplug the power cord from the outlet 2 Remove refrigerator shelves 3 Release the hooks on both ends of the lamp shield and pull the shield downward to remove it 4 Turn the lamp counterclockwise 5 Assembly is the reverse of disassembly Replacement bulb must be the same specification as the original Max 40 W2EA 3 8 2 Freezer Compartment Lamp 1 Unplug refrigerator ...

Страница 9: ... the start winding and main winding 4 2 3 PTC Applied Circuit Diagram Starting Method for the Motor 4 2 4 Motor Restarting and PTC Cooling 1 It requires approximately 5 minutes for the pressure to equalize before the compressor can restart 2 The PTC device generates heat during operation Therefore it must be allowed to cool before the compressor can restart 4 2 5 Relation of PTC Starter and OLP 1 ...

Страница 10: ...e OLP in any way 4 4 TO REMOVE THE COVER PTC 1 Remove the Cover Back M C 2 Disconnect two housing upper side of comp connected in 3 Loosen two screws on comp base 4 Use a L shaped flap tool to pry off the cover 5 Assembly in reverse order of disassembly 10 Part Customer part number Lot code date code 330 FBYY S1 BOX98 12345678 Physical termination part number Electrical characteristics part number...

Страница 11: ...P 1 72 C 5 DOOR S W R GY DOOR S W F 2 BN OLP 3 BK 1 YL 2 I MAKER ICE MAKER PART CON1 CON5 1 2 1 RD 3 GN 9 YL 1 SB YL 8 PK 7 HEATER SHEATH 98 C P T C STARTER 2 2 SHEATH 1 RT SENSOR CORD BK BL 3 BN ICE SENSOR BN 10 WH GN YL RD 5 7 8 BK M GN 11 W VALVE BL 3 nc 4 BL CON1 12 MOTOR WH WHITE PK PINK GY GREY PR PURPLE SB SKY BLUE 3 BL 1 3 8 C BN CON2 D 3 BK RD LC COMP R SENSOR GN 6 CON3 SB 8 WH 2 4 BN M B...

Страница 12: ...ly needs to be checked by an electrician Replace Compressor Supply voltage rating with 10 Applied voltage isn t in acceptable range 115V 10 Remove PTC Starter from Compressor and measure voltage between Terminal C of Compressor and Terminal 5 or 6 of PTC Check resistance between M C S C and M S in Motor Compressor Check resistance of two terminals in PTC Starter Check resistance of two terminals i...

Страница 13: ...sure resistance between No 5 and 6 of PTC Starter with a Tester Figure 19 Separate OLP from Compressor and check resistance value between two terminals of OLP with a Tester Figure 20 Observation value is 115V 60Hz 6 8 30 The resistance value is 0 short or open Check another electric component Replace OLP Replace PTC Starter Figure 19 Figure 20 ...

Страница 14: ...apacity Replace indicated component Advise customer that the Power supply needs to be checked by an electrician Replace indicated component Cause Check voltage at starting devices Check current flowing in sub coil of Compressor Check rating of OLP Fan motor doesn t run Heavy frost buildup on EVAPORATOR Wire is open or shorted Coil is shorted or open Open Open Replace Defrost Heater Replace indicat...

Страница 15: ...igh Is there a gap in the door gasket Is the unit positioned in a firm and even place Are any unnecessary objects placed in the back side of the unit Check if the Drip Tray is not firmly fixed Check if the cover of the compressor enclosure in the lower front side is taken out Check if the door gasket is dirty with an item like juice Is the refrigerator level Is there too much food in the refrigera...

Страница 16: ...tor don t in inlet only temperature The capillary tube is faulty cool normally WHOLE Freezer Flowing sound of refrigerant Equal to ambient Normal discharging of the CLOG compartment and is not heard and frost isn t temperature Refrigerant formed MOISTURE Cooling operation Flowing sound of refrigerant Lower than Cooling operation restarts CLOG stops periodically is not heard and frost melts ambient...

Страница 17: ...ial Very Fast Inefficient Compressor Partial Restriction Complete Restriction Equalization Test Condenser Temperature None Very Fast Very Slow Very Slow Hotter than Normal Air Low Side Leak Loss of Change Compressor Not Pumping Cap Tube Sound Room Temperature Trace of Oil Undercharge Leak Yes No Faint Fast None to Weak The equalization test is trying to restart a compressor using a start kit after...

Страница 18: ...e Park Position Fill Test Mode Waits until water becomes cold after starting the Icemaking operation Runs MOTOR to drop ice from the tray into the ICE BIN Performs Icemaking Mode after supplying water by operating the SOLENOID in ICE VALVE To operate LINE and SERVICE press and hold the Cube Size button for 3 seconds The icemaking will run through 3 stages Harvest Fill Icemaking With the detect lev...

Страница 19: ...ed if it reaches start position again while Heater Motor are on at the same time A ice bin is full The EJECTOR stops heater off B ice bin is not full The EJECTOR rotates twice to open for ice NOTE If the EJECTOR does not rotate once within 5 minutes in status 2 separate heater control mode starts operating to prevent the EJECTOR from being constrained It is recommended that the user open for ice t...

Страница 20: ...r supply control panel ERROR indicators in table can be checked only in TEST mode STAGE ITEMS INDICATOR REMARKS 1 2 3 4 5 6 HEATER MOTOR HALL IC TRAY SOLENOID VALVE HALL IC LEVER Reset Five seconds after heater starts heater will go off if temperature recorded by sensor is 10 C 50 F or lever is in up position Five seconds after heater starts you can confirm that motor is moving You can confirm Hal...

Страница 21: ... 3 If there is a power cut and the refrigerator is power on again ICE PLUS function will be canceled 4 To activate these function you need to press the ICE PLUS key and the LED will turn ON This function will remain activated for 24 hrs The first three hours the compressor and ICE PLUS will be ON The next 21 hours the freezer will be controlled at the lowest temperature After 24 hours or if the IC...

Страница 22: ...sound When the button on the front Display is pushed a Ding Dong sound is produced 8 1 7 Defrosting Removing Frost 1 defrosting starts each time when compressor running time reach 7 hours if any door hasn t been opened 2 In case of any door has been opened the defrosting period will start considering the next conditions If compressor running time is bigger than 7 hrs when door is opened Defrosting...

Страница 23: ...ignal for more than 65sec in operation fan motor Inspect Connecting wires on each sensor Snapping of defrost heater or Temperature fuse pull out of connector indicated minimum 2 hours after failure occurs Poor motor hooking to wires of fan contact of structures to fan snapping or short circuit of Lead wires Defect code signs Defect code signs 1 2 LED OFF LED ON RT sensor error LED check mode Poor ...

Страница 24: ... seconds Push ICE PLUS Key and ADJUST key of Freezer Temperature at the same time over 3 seconds in TEST MODE 1 Push ICE PLUS key and AJUST key of Freezer Temp At the same time over 3 seconds in TEST MODE 2 5 Every DISPLAY LED ON 1 COMP OFF 2 Freezer FAN OFF 3 STEPPING DAMPER CLOSE 4 Defrosting heater ON 5 DISPLAY LED 1 3 5 7 ON Reset if the temperature of the defrosting sensor is 46 F 8 C or more...

Страница 25: ... The voltage for each part is as follows VA1 is a part for preventing over voltage and noise When 385V or higher power is applied the inside elements are short circuited and broken resulting in blowout of the fuse in order to protect the elements of the secondary part of the TRANSFORMER 25 5 Vdc 15 5 Vdc 12Vdc 230 Vac VOLTAGE CE5 CE4 CE3 VA1 PART 5 Vdc 15 5 Vdc 12Vdc 230 Vac VOLTAGE CE5 CE4 CE3 VA...

Страница 26: ...llows all the functions to start at the initial conditions by initializing various parts including the RAM inside the MICOM IC1 when the power is initially supplied or the power supply to the MICOM is restored after a momentary power failure For the initial 10ms of power supply LOW voltage is applied to the MICOM RESET terminal During a normal operation 5V is applied to the RESET terminal If a mal...

Страница 27: ...Drive Open Door Detection Circuit 1 Load Drive Condition Check LOAD TYPE COMP NO 12 NO 14 NO 15 NO 13 1V or below 12V DEFROSTING HEATER LAMP FRENCH DOOR HEATER 1 2 DEW HEATER Measurement Location IC6 Condition ON OFF 27 ...

Страница 28: ...cutting Off the power supplied to driver inside the Fan Motor when it is necessary 2 This is a circuit to perform a temporary change of speed for the fan motor and applies DC voltage up to 7 5V 16V to motor 3 This circuit prevents over driving the fan motor by cutting off power applied to the fan motor in the lock of fan motor by sensing the operation RPM of the fan motor ...

Страница 29: ...s pushed Alarm for open door beep beep beep OFF IC1 A IC1 B 5V 0V 5V 0V 0 05s 0 2s 0 1s 2s 2 63 kz Ding 2 51 kz Dong 5V 0V 0V 5V 0V 0 5s 0 5s 2 63kz Beep OFF 0V 4 Open Door Detection Circuit Check Measurement Location Freezer Refrigerator Door Closed Open Pin No 1 2 Freezer Door Pin No 11 12 Refrigerator Door 5V 0V ...

Страница 30: ... Defrosting Sensor POINT Voltage A B C 8 2 5 Temperature Sensor Circuit The upper CIRCUIT reads REFRIGERATOR temperature FREEZER Temperature and DEFROST SENSOR temperature for defrosting and the indoor temperature for compensating for the surrounding temperature into MICOM OPENING or SHORT state of each TEMPERATURE SENSOR are as follows MICOM ...

Страница 31: ... 31 8 2 6 Refrigeration Compartment Stepping Motor Damper Circuit The circuit shown below is the damper circuit to regulate the refrigerator temperature ...

Страница 32: ...n Circuit The circuit shown below determinates whether a function control key on the operation display is pushed It also turns on the corresponding function indication LED LED Module SEVEN SEGMENT DISPLAY MODULE The drive type is the scan type ...

Страница 33: ...ENSOR has a 5 common diference Measure the resistance of the SENSOR after leaving it for over 3 minutes in the measuring temperature This delay is necessary due to sensor response speed 20 C 15 C 10 C 5 C 0 C 5 C 10 C 15 C 20 C 25 C 30 C 40 C 50 C 22 3K 16 9K 13 0K 10 1K 7 8K 6 2K 4 9K 3 9K 3 1K 2 5K 2 0K 1 4K 0 8K 77K 60K 47 3K 38 4K 30K 24 1K 19 5K 15 9K 13K 11K 8 9K 6 2K 4 3K ...

Страница 34: ...C is poor Replace OLP PTC after compressor shuts off COMPRESSOR RELAY is Replace MAIN PWB don t press the KEY and poor wait THE CONNECTING WIRE Check the connection of the is poor black wire of the MAIN PWB CONNECTOR CON2 2 If refrigerant is leaking Measure the amount of frost Refrigerant leakage Replace the leaking part and sticking on EVAPORATOR replace any lost refrigerant and the surface tempe...

Страница 35: ...liner damaged Replace Door liner door is closed DEFROSTING is NO DEFROSTING 1 If HEATER emits heat USE TEST MODE3 HEATER disconnection Replace HEATER poor forced DEFROSTING TEMPERATURE FUSE Replace TEMPERATURE disconnection FUSE Connection is poor Check EVAPORATOR connection and wire of MAIN PWB CONNECTOR DEFROST SENSOR is poor Replace DEFROST SENSOR HEATER RELAY is poor Replace RY2 of MAIN PWB 2 ...

Страница 36: ...8 5 MAIN PWB ASSEMBLY AND PARTS LIST 8 5 1 Main PWB Assembly 36 ...

Страница 37: ...8 5 2 Replacement Parts List 37 ...

Страница 38: ...8 5 3 PWB Assembly Display and parts list 38 ...

Страница 39: ...8 6 PWB DIAGRAM 39 8 6 1 PWB Main Assembly ...

Страница 40: ... 40 ...

Страница 41: ...19A 319C 503D 282B 409D 120B 409B 158A 125D 332A 135C 405A 158E 145B 409B 503C 503E 106A 145A 282F 405C 405F 319E 329A 404A 903D 610A 903E 610A 262H 410G 402A 271A 282E 503G 503F 406B S22 405G 103C 105F 410A 327A S01 S01 619B S38 328A 41 623H 284B 284E 412D CASE PARTS CAUTION Use the part number to order part not the position number EV 9 EXPLODED VIEW ...

Страница 42: ...136B 248E 248F 131A 145C 145F 125A 136A 282X FREEZER PARTS CAUTION Use the part number to order part not the position number EV 42 ...

Страница 43: ...B 151C 140D S24 170A 128A 103E 103E 128B 143F 142E 142D S24 S24 140B 140B 143E 140E S24 140D S24 140B 143E 140E S24 140D S24 140B 143E 140E S24 43 REFRIGERATOR PARTS CAUTION Use the part number to order part not the position number EV ...

Страница 44: ... 233A 231A 230A 212G 243A S27 243B 262E 286A 233D 249J 250B 249E 249A 621B 249K 249F 249B 250B 621C 128F 128E 286A 212J 244A 212J 244A 203A 201A 200A 250A 212A 212J 205B 205C 233E 233F 233G 233H S27 621D 44 DOOR PARTS CAUTION Use the part number to order part not the position number EV ...

Страница 45: ...August 2009 MFL62582001 ...

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