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CAUTION

BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

REFRIGERATOR

SERVICE MANUAL

MODELS:

LFC20770SB
LFC20770SW
LFC20770ST

LFC20786SW
LFC20786ST
LFC20786SB

Содержание LFC20770SB

Страница 1: ...CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL REFRIGERATOR SERVICE MANUAL MODELS LFC20770SB LFC20770SW LFC20770ST LFC20786SW LFC20786ST LFC20786SB ...

Страница 2: ...TIONS SAFETY PRECAUTIONS 1 SPECIFICATIONS 2 PARTS IDENTIFICATION 3 DISASSEMBLY 3 1 Fan and Fan Motor 3 2 Defrost Control Assembly 3 3 LED 3 4 Display 3 5 Multiduct 3 6 Cover Valve 3 7 Door Disassembly 3 8 How to remove the Door Handle 3 10 How to remove Pull out drawer 3 11 Closing and aligning the doors 4 ADJUSTMENT 4 1 Compressor 4 2 e PTC Starter 4 3 OLP overload protector 6 CIRCUIT DIAGRAM 8 T...

Страница 3: ...ty Lamp Tray drawer F L Tray drawer F U SPECIFICATIONS LFC20770SB LFC20770SW LFC20770ST VISTA Pl PCM FREEZER YES FULL WIDTH GENERAL FEATURES REFRIGERATOR 3 LEFT 3 RIGHT Defrosting System 2FIX FULL INSTALLED READY 1 B 2 T FAN COOLING MICOM CONTROL FULL AUTOMATIC HEATER DEFROST CYCLO PENTANANE 4 HOURS 7 40 HOURS SHEATH HEATER WATER TRANK HEATER MQ53LAUM PTC STARTING TYPE FIN TUBE TYPE WIRE CONDENSER...

Страница 4: ...les Depth w o Door Depth Total with Door Open Height to Top of Case Height to Top of Door Hinge Width Width door open 90 deg w o handle Width door open 90 deg w handle A B C D E F G H I Description LFC20770 28 38 33 32 44 29 34 67 7 16 68 3 16 ...

Страница 5: ...e features shown below may not match your model On some models A Digital Sensor Control Dairy Compartment Door Racks Freezer Light Pull Out Drawer B C D F E G H Durabase I J K Ice Bin Optibin Crisper Keeps fruits and vegetable fresh and crisper Shelves Refrigerator Light Light Bulb or LED Ice Maker A B C H I F G J J D E K C Note Some models do not include Ice Maker Ice Maker kit is available for s...

Страница 6: ... Evaporator and senses its temperature Fuse M is safety device for preventing over heating of the Heater when defrosting At 72 C it turns the Defrost Heater off 1 Pull out the grille assembly Fig 1 2 Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Fig 2 3 3 LED 3 3 1 REFRIGERATOR COMPARTMENT LAMP 3 3 2 FREEZER COMPARTMENT...

Страница 7: ...emble remove the cover hinge from any door IMPORTANT Before you begin unplug your refrigerator Left Door Release the two screws from the upper lid 1 remove it after that 1 2 Whit a screwdriver remove the screw from Display 3 Unplug the connector screwdriver and loosen 2 screws NOTE To assemble follow the instruction above at inverse order ...

Страница 8: ...BLE 3 6 2 ASSEMBLE 1 Unscrew the back cover 2 Unscrew the valve from the back side cover 3 Push to the left and release 1 Insert the ribs to the right side of the back hole cover 2 Screw the valve from the back side cover 3 Screw the back cover 7 ...

Страница 9: ...1 remove it after that 1 2 With the 10mm socket wrench loose the two pins from the hinge 3 and remove it 4 3 4 Unplug the switches cable 2 it s optional it s no neccesary do it for removing the door Place the door with the inner face over the surface so it won t scratch 5 Unplug the switches cable 6 it s optional it s no neccesary do it for removing the door 6 Unplug the cable harness pulling up t...

Страница 10: ...hat the sealing patch of the door is leveled to the refrigerator and that it isn t bended 9 10 11 hinge 1 7 Front view of the harness Place the hinge in its original position 4 assembly the two pins 5 and the ground screws 6 Plug the cable harness 7 and the switch 8 just in case 7 8 4 5 6 Right Door if you unplugged the switch Place the hinge lid 9 and install both screws 10 Be sure the door is co...

Страница 11: ... sealing patch of the door ends leveled with the refrigerator and that it isn t bended 11 Left Door Plug the cable to the switch 16 just in case if you 16 Place the hinge s lid 17 and screw the two screw 18 Check that the door is well installed 18 17 Loose the screws 1 with the Allen tool 3 32 and remove the handle 2 Remove the mounting screws with the Allen tool 3 Mounting Screws Allen Wrench Scr...

Страница 12: ...he freezer s handle With an 3 32 Allen tool loose the screws 1 located on from the door 3 with an Allen tool the bottom of the handle remove it 2 remove the screws Mounting Screws Screws 3 2 1 Wrench Allen 3 2 1 3 3 To install the freezer s handle Install the mounting screws over the door 1 place the handle over them 2 and tight the screws up 3 1 2 3 1 11 ...

Страница 13: ...he 2 screw with a screwdriver 2 Pull up to get it out from the hook the pillar 3 Unplug the connector to release the pillar NOTE To assemble follow the instruction above at inverse order 12 IMPORTANT Before you begin unplug your refrigerator ...

Страница 14: ...iling tracks 3 CAUTION When removing the drawer do not hold the handle If it comes off it could cause personal injury CAUTION To place the drawer on the floor take care not to damage the floor or hurt your feet with the sharp edges on the side with the hinges With both hands hold both sides of the door and pull up to separate it With both hands hold the center of the bar and push it in so that it ...

Страница 15: ...ing the part in the front last as shown in the figure screws 3 With the drawer fully extended insert the lower basket over the front part of the rail assembly and then the WARNING To prevent entrapment risk and accidental child or animal suffocation DO NOT permit them to play inside of the drawer WARNING DO NOT step ot sit on the Freezer Door 4 back part 4 14 ...

Страница 16: ...lle Refer to the section on Installation of Base Grille Use a flat head screwdriver to adjust the leveling screws turning clockwise to raise the side of the refrigerator and counter clockwise to lower it It may NOTE Having someone push against the top of the refrigerator takes some weight off the leveling screws This will make it easier to adjust the screws 4 5 Ensure that the refrigerator is even...

Страница 17: ... start winding and main winding 4 2 3 e PTC Applied Circuit Diagram Starting Method for the Motor 4 2 4 Motor Restarting and e PTC Cooling 1 It requires approximately 5 minutes for the pressure to equalize before the compressor can restart 2 The e PTC device generates heat during operation Therefore it must be allowed to cool before the compressor can restart 4 2 5 Relation of e PTC Starter and OL...

Страница 18: ...nts the Motor Coil from being started in the Compressor 2 For normal operation of the OLP do not turn the Adjust Screw of the OLP in any way Part Customer part number Lot code date code 330 FBYY S1 BOX98 12345678 termination part number Electrical characteristics part number No Name Base phenolic UL 94 V 0 rated Movable arm support Stationary contact support plated steel Heater support plated stee...

Страница 19: ...ntil water in the TRAY is frozen after Icemaker Starts 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 Fill Key for 3 seconds The icemaking will run through 3 stages Harvest Fill Icemaking Power Input Adjusts Ejector to Start Position with power on Ice...

Страница 20: ... the TRAY a This is to eject ice from the TRAY after ice making is completed b If Hall IC signal is on within 3 6 seconds after ice ejection motor rotates in normal direction it does not proceed ice ejection but waits If the ice bank is full ice ejection motor rotates in normal direction in every hour to check the condition of ice bank If the ice bank is not full the water supply control starts af...

Страница 21: ...or Output Signals ON OFF Bank is full Ice checking AXIS LEVEL 30 8 0 10 32 41 53 58 80 160 170 Lock Lock Icemaking original point Ice ejection MAXIMUM TILTING POINT Ice checking AXIS A B C 9 3 sec 8 3 sec 2 1 sec Level Return Conditions Horizontal Conditions 20 ...

Страница 22: ... W Setting will be depend of water pressure DISP S W No Water Supply Time Note TEST SWITCH POWER SWITCH Test function starts when test switch is pressed for more than 3 seconds User shouldn t force operation while doing test mode service or cleaning Test switch will work only when ice tray its in horizontal position not during ice ejection or water supplying When pressing the Test Switch feeler ar...

Страница 23: ...6 CIRCUIT DIAGRAM 22 CIRCUIT DIAGRAM ...

Страница 24: ...CIRCUIT DIAGRAM 23 ...

Страница 25: ...D will turn ON or OFF 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 ...

Страница 26: ...he front Display is pushed a Ding Dong sound is produced 7 1 6 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 hours when door is opened Defrosting starts immediately If c...

Страница 27: ...7 2 PCB FUNCTION CON 1 CON 3 CON 2 CON 8 CON 9 CON 7 CON 6 CON 5 CON 4 26 ...

Страница 28: ... from compressor and measure voltage between Terminal C of compressor and terminal 5 or 6 of e PTC Check resistance of two terminals in e PTC Starter Check resistance of two terminals in OLP Check the power supply under load Compressor attempting to re start after being off for 5 minutes Check resistance of e PTC Starter Check OLP Check starting state Check resistance of motor compressor Check the...

Страница 29: ...h a Tester Figure 1 Observation value is 115V 60Hz 6 8 20 The resistance value is 0 short or open Check another electric component Replace OLP Replace e PTC Starter Figure 1 Figure 2 Normal operation of compressor is impossible or poor Separate OLP from compressor and check resistance value between two terminals of OLP whit a tester Figure 2 28 ...

Страница 30: ...city 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 indicated ...

Страница 31: ...gh Are any unnecessary objects placed 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 Check if the inside of the unit is dirty The unit smells of plastic Plug into the outlet Set the switch to ON Replace the fuse If the voltage is low correct the wiring Place the...

Страница 32: ... 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 wh...

Страница 33: ... 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 it...

Страница 34: ... 33 8 6 PCB Picture P No MFG EBR6411051 2011 07 Picture CON8 CON9 CON1 CON3 CON12 CON7 CON6 CON5 CON4 Main PCB ...

Страница 35: ... 34 P No MFG EBR6411052 2011 07 Picture CON8 CON9 CON1 CON3 CON12 CON7 CON6 CON5 CON4 Main PCB ...

Страница 36: ... 35 Display PCB P No Display PCB 6871JB2046C Picture Display PCB 6871JB2047B CON101 harness joint CON101 CON102 harness Joint ...

Страница 37: ... 36 LED Lamps P No LED Lamp R EAV61711901 Picture LED Lamp F EAV60892210 ...

Страница 38: ... Check M Fuse Check for loose connections on Main PCB Check for loose connections on Freezer compartment 8 Freezer Fan BLDC Motor abnormal operation 1 All LED OFF There is not signal from BLDC motor during 115 seconds after start BLDC operation Check for motor stuck Loose connections on Main PCB and Freezer compartment check for damage on wires NOTE 1 Items No 1 2 3 7 8 are considered primary erro...

Страница 39: ... Freezer compartment 8 Freezer Fan BLDC Motor abnormal operation 1 Er There is not signal from BLDC motor during 115 seconds after start BLDC operation Check for motor stuck Loose connections on Main PCB and Freezer compartment check for damage on wires NOTE 1 Items No 1 2 3 7 8 are considered primary errors when any of these error is present in the refrigerator unit it will be displayed after 3 h...

Страница 40: ...25K Ù Replace Main PCB See NOTE1 Other Value Replace Sensor 0Ù or open Go to step 3 NOTE 1 Be sure that resistance value measurement match with real compartment temperature Refer to F Sensor chart Else consider it as Other Value Condition 3 1 Remove cover from Freezer Sensor Result SVC Action Open Circuit Go to step 4 0Ù Replace Refrigerator unit 2 Pull the Sensor then cut the wires 3 Strip the wi...

Страница 41: ... 4 1 Twist wire ends 2 Check resistance value No Checking flow Result SVC Action Result SVC Action Open Circuit Replace Refrigerator Unit 0Ù Put a new sensor for Freezer compartment Representative picture ...

Страница 42: ...5 40K Ù Replace Main PCB See NOTE1 Other Value Replace Sensor 0Ù or open Go to step 3 NOTE 1 Be sure that resistance value measurement match with real compartment temperature Refer to R Sensor chart Else consider it as Other Value Condition 3 1 Remove cover from Refrigerator Sensor Result SVC Action Open Circuit Go to step 4 0Ù Replace Refrigerator unit 2 Pull the Sensor then cut the wires 3 Strip...

Страница 43: ... 1 Twist wire ends 2 Check resistance value No Checking flow Result SVC Action Result SVC Action Other Value Replace Refrigerator Unit 0Ù Put a new sensor for Refrigerator compartment Representative picture ...

Страница 44: ... Result SVC Action 7 15 86K Ù Replace Main PCB See NOTE1 Other Value Replace Defrost Controller Assembly 0Ù or open Go to step 3 NOTE 1 Be sure that resistance value measurement match with real Evaporator temperature Refer to D Sensor chart Else consider it as Other Value Condition 3 1 Remove Rails and Cover of Evaporator 2 Check loose connection on connector of Defrost controller assembly Result ...

Страница 45: ...lace Refrigerator unit Result SVC Action 7 15 86KÙ Go to step 5 Other Value Replace Defrost Controller Assembly 0Ùor open 6 1 Make and hold a short circuit in the Defrost Controller assembly receptacle Result SVC Action 0Ù Replace Main PCB Other Value Replace Refrigerator unit 2 Check resistance value between wires orange to orange Short Circuit NOTE 1 Be sure that resistance value measurement mat...

Страница 46: ... 2 Check resistance value between wires brown to brown Result SVC Action 7 0 30K Ù Replace Main PCB See NOTE1 Other Value Replace Room Temperature Sensor 0Ù or open Go to step 3 NOTE 1 Be sure that resistance value measurement match with real Evaporator temperature Refer to D Sensor chart Else consider it as Other Value Condition 3 1 Remove Cover hinge of Refrigerator Door Left 2 Check for wire da...

Страница 47: ...r unit 5 1 Twist wire ends 2 Check resistance value in brown to brown in CON8 2 Strip the wire ends 3 Check resistance value between wires brown to brown in CON8 Representative picture NOTE Keep wire ends separated during measurement Result SVC Action 0Ù Replace Room Temperature sensor Other Value Replace Refrigerator unit Representative picture ...

Страница 48: ...e value between wires gray to gray Result SVC Action 1 8 25K Ù Replace Main PCB See NOTE1 Other Value Go to step 3 3 1 Unscrew Ice Maker Assembly 2 Check for loose connection of Ice Maker Assembly kit Result SVC Action Firmly plugged Go to step 4 Loose Plug firmly then check again Problem persist YES go to step 4 NO explain to customer NOTE 1 Be sure that resistance value measurement match with re...

Страница 49: ...VC Action 1 8 25KÙ Go to step 5 Other Value Replace Ice Maker Kit 5 1 Keep Ice Maker kit unplugged 2 Make and hold a short circuit in Ice Maker Kit receptacle as is shown in the picture Result SVC Action 0Ù Go to step 6 Other Value Replace Refrigerator Unit Short Circuit 3 Check the resistance value in CON9 wires gray to gray ...

Страница 50: ...9 6 1 Release short circuit No Checking flow Result SVC Action Result SVC Action Open Circuit Replace Main PCB Other Value Replace Refrigerator Unit 2 Check the resistance value in CON9 wires gray to gray ...

Страница 51: ...ed Go to step 2 Loose Plug firmly then check again Problem persist YES go to step 2 NO explain to customer 2 1 Execute I M TEST MODE Result SVC Action Voltage Change Replace Main PCB Voltage no change Go to step 3 TEST SWITCH 2 Check if voltage between wires blue and black change from 5Volts 0 Volts 5Volts 5Volts during TEST CYCLE ...

Страница 52: ...w wires No Checking flow Result SVC Action Result SVC Action 5VDC Go to step 4 0VDC Replace Main PCB 4 1 Execute I M TEST MODE Result SVC Action 9 5VDC Go to step 5 0 1VDC Replace Main PCB TEST SWITCH 2 Check voltage between red white wires ...

Страница 53: ... Loose Plug firmly then check again Problem persist YES go to step 2 NO explain to customer 4 1 Check continuity in marked wires Result SVC Action Continuity in all wires Replace Ice Maker Kit Not continuity in any wire Replace Refrigerator Unit 1 2 3 5 4 1 2 3 4 5 Check continuity as follow 1 Black Black 2 Blue Blue 3 Yellow Yellow 4 White White 5 Red Red ...

Страница 54: ...in to customer 2 1 Execute TEST MODE 2 2 Check voltage between wires Brown and Blue as is shown in the picture Result SVC Action 110 120VAC Go to step 3 0 10VAC Replace Main PCB 3 1 Remove Rails and Cover evaporator 2 Check for any loose connection in Defrost Controller assembly or Defrost Heater Result SVC Action Firmly plugged Go to step 4 Loose Plug firmly then check again Problem persist YES g...

Страница 55: ...o to step 5 5 1 Unplug Defrost Controller Assembly 2 Check continuity between Brown and Red wires Result SVC Action 0Ù Go to step 6 Open Circuit Replace Defrost Controller Assembly 6 1 Unplug Defrost Heater 2 Check resistance value between black wires Result SVC Action 32 7 36 1Ù Replace Defrost Controller Assembly Other Value Replace Defrost Heater ...

Страница 56: ...blem persist YES go to step 2 NO explain to customer 2 1 Reset the refrigerator Unplug powercord wait 10 seconds plug powercord 2 Execute TEST MODE 1 3 Check Voltage between wires Gray and White Result SVC Action 11 17VDC Go to step 3 Other Voltage Replace Main PCB 3 1 Execute TEST MODE 1 3 Check Voltage between wires Gray and Purple Result SVC Action 2 4VDC Replace Main PCB Other Voltage Go to st...

Страница 57: ...p 5 NO explain to customer 5 1 Execute TEST MODE 1 2 Check Voltage between wires Red and Black Result SVC Action 11 17VDC Go to step 6 Other Voltage Replace Refrigerator Unit 6 1 Execute TEST MODE 1 2 Check Voltage between wires Purple and Black Result SVC Action 2 4VDC If Fan Motor is working Replace PCB If Fan Motor is not working or is moving slowly Check for any interference 0VDC Go to step 7 ...

Страница 58: ...lug Freezer Fan in Freezer Compartment No Checking flow Result SVC Action Result SVC Action 0VDC Replace Main PCB 5VDC Replace Fan Motor 2 Execute TEST MODE 1 3 Check Voltage in CON4 between wires White and Purple ...

Страница 59: ...o the customer NO Go to step 2 2 1 Press ICE PLUS and FREEZER TEMP keys 2 Check if Ice Maker Sensor error or Ice Maker Kit error are present Result SVC Action Error Displayed Proceed according displayed error No Error Displayed Go to step 3 3 1 Execute I Maker TEST MODE 2 Wait until TEST MODE Finish 3 Check voltage between Purple and Blue wires Result SVC Action 110 120VAC Go to step 4 0 10VAC Rep...

Страница 60: ...ice valve Result SVC Action Firmly plugged Go to step 5 Loose Plug firmly then go to step 5 5 1 Execute I Maker TEST MODE 2 Wait until I Maker TEST MODE cycle finish 3 Check voltage between purple and blue wires on Ice Valve assembly Result SVC Action 110 120VAC Replace Ice Valve Assembly 0 10VAC Replace Refrigerator Unit ...

Страница 61: ...to step 3 Other Value Replace Main PCB Result SVC Action Firmly plugged Go to step 2 Loose Plug firmly then check again Problem persist YES go to step 2 NO explain to customer 3 Check for loose connection in harness joint located in Case Main PCB Result SVC Action Firmly plugged Go to step 4 Loose Plug firmly then check again Problem persist YES go to step 4 NO explain to customer ...

Страница 62: ... shown in the picture No Checking flow Result SVC Action Result SVC Action Freezer Door S W pressed 11 12VDC Check in released condition 0VDC Replace Door Switch Freezer Door S W released 0VDC Replace LED Lamp Other Replace Refrigerator unit 3 Press and Release Freezer Door switch ...

Страница 63: ...o to step 3 Other Value Replace Main PCB Result SVC Action Firmly plugged Go to step 2 Loose Plug firmly then check again Problem persist YES go to step 2 NO explain to customer 3 Check for loose connection in harness joint located in Case Main PCB Result SVC Action Firmly plugged Go to step 4 Loose Plug firmly then check again Problem persist YES go to step 4 NO explain to customer ...

Страница 64: ...t 3 Press and keep hold Refrigerator door switch Right 4 Press and Release Refrigerator Door switch Left 5 1 Check Voltage between Red and Black wires as is shown in the picture 2 Press and keep hold Refrigerator door switch Left 3 Press and Release Refrigerator Door switch Right Result SVC Action Left Door S W pressed 11 12VDC Check in released condition 0VDC Replace Door Switch Right Left Door S...

Страница 65: ...Action 2 1 Unplug CON4 from Main PCB 2 Check resistance value between Red Yellow Wires 3 Check resistance value between Blue White wires Result SVC Action Wind Go to step 6 No Wind Go to step 2 Result SVC Action 373 5 456 5Ù Go to step 6 Other Value Go to step 3 B A NOTE Measurement A and B must be within spec If A or B are not mach with the spec consider it as Other Value condition ...

Страница 66: ...Value Change Duct Assembly Result SVC Action Firmly plugged Go to step 4 Loose Plug firmly then check again Problem persist YES go to step 4 NO explain to customer 2 Check resistance value on Duct Assembly connector White to Blue and Red to Yellow B B A A NOTE Measurement A and B must be within spec If A or B are not mach with the spec consider it as Other Value condition ...

Страница 67: ...e TEST MODE 1 and check damper status 4 Execute TEST MODE 2 and check damper status Result SVC Action TEST MODE 1 Damper Opened Check TEST MODE 2 condition Damper Closed Replace Main PCB TEST MODE 2 Damper Opened Replace Main PCB Damper Closed Go to step 7 Result SVC Action Continuity in all wires Go to step 6 No Continuity in any wire Replace refrigerator unit Damper Opened Damper Closed ...

Страница 68: ... real temperature of compartment Result SVC Action Match Check Sealed System and Gaskets No Match Replace R Sensor Refer to R Sensor Error C F 26 0 14 8 104 60 4 00 24 0 11 2 94 30 3 92 22 0 7 6 85 14 3 83 20 0 4 0 76 96 3 73 18 0 0 4 69 66 3 64 16 0 3 2 63 13 3 54 14 0 6 8 57 29 3 44 12 0 10 4 52 05 3 33 10 0 14 0 47 34 3 22 8 0 17 6 43 12 3 12 6 0 21 2 39 31 3 01 4 0 24 8 35 88 2 89 2 0 28 4 32 ...

Страница 69: ...14 3 83 20 0 4 0 76 96 3 73 18 0 0 4 69 66 3 64 16 0 3 2 63 13 3 54 14 0 6 8 57 29 3 44 12 0 10 4 52 05 3 33 10 0 14 0 47 34 3 22 8 0 17 6 43 12 3 12 6 0 21 2 39 31 3 01 4 0 24 8 35 88 2 89 2 0 28 4 32 79 2 78 0 0 32 0 30 00 2 67 2 0 35 6 27 47 2 56 4 0 39 2 25 19 2 46 6 0 42 8 23 12 2 35 8 0 46 4 21 24 2 24 10 0 50 0 19 53 2 14 12 0 53 6 17 98 2 04 14 0 57 2 16 57 1 94 16 0 60 8 15 28 1 85 18 0 6...

Страница 70: ...h Replace Sensor Refer to F Sensor Error F Sensor Temperature chart and equivalencies C F 26 0 14 8 31 37 3 30 24 0 11 2 27 97 3 17 22 0 7 6 24 98 3 03 20 0 4 0 22 33 2 90 18 0 0 4 20 00 2 76 16 0 3 2 17 94 2 63 14 0 6 8 16 11 2 49 12 0 10 4 14 49 2 36 10 0 14 0 13 05 2 23 8 0 17 6 11 76 2 10 6 0 21 2 10 62 1 98 4 0 24 8 9 60 1 86 2 0 28 4 8 69 1 75 0 0 32 0 7 88 1 64 2 0 35 6 7 15 1 53 4 0 39 2 6...

Страница 71: ...03 20 0 4 0 22 33 2 90 18 0 0 4 20 00 2 76 16 0 3 2 17 94 2 63 14 0 6 8 16 11 2 49 12 0 10 4 14 49 2 36 10 0 14 0 13 05 2 23 8 0 17 6 11 76 2 10 6 0 21 2 10 62 1 98 4 0 24 8 9 60 1 86 2 0 28 4 8 69 1 75 0 0 32 0 7 88 1 64 2 0 35 6 7 15 1 53 4 0 39 2 6 50 1 43 6 0 42 8 5 91 1 34 8 0 46 4 5 38 1 25 10 0 50 0 4 91 1 16 12 0 53 6 4 48 1 08 14 0 57 2 4 10 1 01 16 0 60 8 3 75 0 94 18 0 64 4 3 43 0 87 20...

Страница 72: ...tion Fix connectors check if the problem persist YES Check sealed system and gaskets NO Explain to customer Firmly connected Check Sealed system and Gaskets 2 Check voltage between Black and Blue wires as is shown in the picture Result SVC Action 110 120VAC Go to step 6 Other Value Replace Refrigerator Unit 2 Check for any loose connection ...

Страница 73: ...h Replace Sensor Refer to F Sensor Error F Sensor Temperature chart and equivalencies C F 26 0 14 8 31 37 3 30 24 0 11 2 27 97 3 17 22 0 7 6 24 98 3 03 20 0 4 0 22 33 2 90 18 0 0 4 20 00 2 76 16 0 3 2 17 94 2 63 14 0 6 8 16 11 2 49 12 0 10 4 14 49 2 36 10 0 14 0 13 05 2 23 8 0 17 6 11 76 2 10 6 0 21 2 10 62 1 98 4 0 24 8 9 60 1 86 2 0 28 4 8 69 1 75 0 0 32 0 7 88 1 64 2 0 35 6 7 15 1 53 4 0 39 2 6...

Страница 74: ... 3 03 20 0 4 0 22 33 2 90 18 0 0 4 20 00 2 76 16 0 3 2 17 94 2 63 14 0 6 8 16 11 2 49 12 0 10 4 14 49 2 36 10 0 14 0 13 05 2 23 8 0 17 6 11 76 2 10 6 0 21 2 10 62 1 98 4 0 24 8 9 60 1 86 2 0 28 4 8 69 1 75 0 0 32 0 7 88 1 64 2 0 35 6 7 15 1 53 4 0 39 2 6 50 1 43 6 0 42 8 5 91 1 34 8 0 46 4 5 38 1 25 10 0 50 0 4 91 1 16 12 0 53 6 4 48 1 08 14 0 57 2 4 10 1 01 16 0 60 8 3 75 0 94 18 0 64 4 3 43 0 87...

Страница 75: ...ult SVC Action Result SVC Action All Correct Go to step 2 Irregularities Explain to Customer 2 Result SVC Action 110 120VSC Go to step 3 0 10VAC Replace powercord 1 Remove Cover of Machine Room 2 Check voltage between Black and White wires as is shown in the picture 3 Result SVC Action 110 120VSC Replace Main PCB 0 10VAC Replace Refrigerator unit 1 Check voltage between White and Brown Wires ...

Страница 76: ...es on CON3 No Checking flow Result SVC Action Result SVC Action 110 120VAC Go to step 2 0 10VAC Replace Main PCB 2 Result SVC Action Loose Connection Plug correctly check again Firmly connected Go to step 3 1 Remove Cover Hinge of refrigerator door left 2 Check for loose connection 3 Result SVC Action 110 120VAC Go to step 4 0 10VAC Replace Refrigerator Unit Check Voltage between brown and blue wi...

Страница 77: ... SVC Action 5 Result SVC Action 110 120VAC Go to step 6 0 10VAC Replace Left Refrigerator Door 1 Check for voltage between yellow and black wires 2 Remove Cover 3 Check for loose connection Result SVC Action Loose Connection Plug correctly check again Firmly connected Go to step 5 ...

Страница 78: ... 77 6 1 Unscrew pillar No Checking flow Result SVC Action Result SVC Action 110 120VAC Replace Pillar 0 10VAC Replace Refrigerator Door Left 2 Remove Pillar 3 Check voltage between Red to Red wires ...

Страница 79: ... Action Pressing Door Switch 5VDC Check released condition 0VDC Go to step 3 Door Switch released 5VDC Go to step 3 0VDC Go to step 2 2 1 Press and hold Refrigerator door switch Right 2 Press Release Refrigerator Door Switch Left 3 Check Voltage between Gray to gray wires Result SVC Action Pressing Door Switch 5VDC Check released condition 0VDC Go to step 4 Door Switch released 5VDC Go to step 4 0...

Страница 80: ...er 4 1 Unplug the refrigerator 2 Remove cover hinge Right 3 Check continuity between Gray to Gray wires Result SVC Action Pressing Door Switch 0Ù Check for damage on wires near to cover hinge No Damage Replace Door Switch Damaged Fix if it s possible explain to customer Open Circuit Check Released condition Door Switch released 0Ù Go to step 5 Open circuit Check for damage on wires near to cover h...

Страница 81: ... Pressing Door Switch 0Ù Check for damage on wires near to Freezer door Switch No Damage Replace Door Switch Damaged Fix if it s possible explain to customer Open Circuit Check Released condition Door Switch released 0Ù Replace Refrigerator Unit Open circuit Check for damage on wires near to Freezer door Switch No Damage Replace Door Switch Damaged Fix if it s possible explain to customer ...

Страница 82: ...If you push the test button on the Main PCB the refrigerator will be enter the TEST MODE TEST MODE 1 Instructions Display Contents 1 Press TEST SWITCH once to enter in this mode 1 Compressor ON 2 Defrost Heater OFF 3 CFAN ON 4 FFAN ON 5 Damper OPEN Step Motor Main PWB ...

Страница 83: ...N OFF 5 Damper CLOSED Step Motor NORMAL OPERATION Instructions Display Contents 1 From TEST MODE 1 Press twice TEST SWITCH 2 From TEST MODE 2 Press once TEST SWITCH 1 Compressor OFF 2 Defrost Heater OFF 3 CFAN OFF 4 FFAN OFF 5 Damper CLOSED Step Motor After exit of any TEST MODE Compressor CFAN Motor FFAN Motor and Damper will operate after a 7 minutes delay 37 0 222 222 ...

Страница 84: ... How to remove Terminal Position Assurance TPA After measure the values you MUST put in the TPA again AC TPA Lift snap Right Press hook Right Lift snap Left Press hook Left DC TPA Press Hook Right Press Hook Left Lift T P A ...

Страница 85: ...4 32 79 2 78 0 0 32 0 30 00 2 67 2 0 35 6 27 47 2 56 4 0 39 2 25 19 2 46 6 0 42 8 23 12 2 35 8 0 46 4 21 24 2 24 10 0 50 0 19 53 2 14 12 0 53 6 17 98 2 04 14 0 57 2 16 57 1 94 16 0 60 8 15 28 1 85 18 0 64 4 14 10 1 75 20 0 68 0 13 03 1 67 22 0 71 6 12 05 1 58 24 0 75 2 11 16 1 50 26 0 78 8 10 34 1 42 28 0 82 4 9 59 1 34 30 0 86 0 8 90 1 27 32 0 89 6 8 26 1 20 34 0 93 2 7 68 1 14 36 0 96 8 7 15 1 0...

Страница 86: ... 10 62 1 98 4 0 24 8 9 60 1 86 2 0 28 4 8 69 1 75 0 0 32 0 7 88 1 64 2 0 35 6 7 15 1 53 4 0 39 2 6 50 1 43 6 0 42 8 5 91 1 34 8 0 46 4 5 38 1 25 10 0 50 0 4 91 1 16 12 0 53 6 4 48 1 08 14 0 57 2 4 10 1 01 16 0 60 8 3 75 0 94 18 0 64 4 3 43 0 87 20 0 68 0 3 15 0 81 22 0 71 6 2 89 0 76 24 0 75 2 2 65 0 70 26 0 78 8 2 44 0 65 28 0 82 4 2 25 0 61 30 0 86 0 2 07 0 57 32 0 89 6 1 91 0 53 34 0 93 2 1 76 ...

Страница 87: ... 12 4 06 6 0 21 2 39 31 3 99 4 0 24 8 35 88 3 91 2 0 28 4 32 79 3 83 0 0 32 0 30 00 3 75 2 0 35 6 27 47 3 67 4 0 39 2 25 19 3 58 6 0 42 8 23 12 3 49 8 0 46 4 21 24 3 40 10 0 50 0 19 53 3 31 12 0 53 6 17 98 3 21 14 0 57 2 16 57 3 12 16 0 60 8 15 28 3 02 18 0 64 4 14 10 2 93 20 0 68 0 13 03 2 83 22 0 71 6 12 05 2 73 24 0 75 2 11 16 2 64 26 0 78 8 10 34 2 54 28 0 82 4 9 59 2 45 30 0 86 0 8 90 2 35 32...

Страница 88: ...3C 503E 503F 409B 120B 282E 402A 271A 501F 501A 304A 411A 610A 145B 158A 282B S01 B01 301A 128E 610A S01 128F 262H 406B 106A 305B 305C 305B 305C 103C 105F 405G 329A 319E 405C 404A 405F 405A 332A 135C S22 158E 418A 106A 409A 315A S38 328B 410G 105A 327A 317A 309A 307A 310A 412D 308A 323B 319D 405B 405B 329C 420A 86 282K 312A 903D 903E ...

Страница 89: ...131A 136A 145F 145C EV FREEZER PARTS CAUTION use the part number to order part not the position number 87 136B 237C ...

Страница 90: ... EV REFRIGERATOR PARTS CAUTION use the part number to order part not the position number 88 140D S24 143B 143A 140E S24 140D S24 143B 143A 140E S24 ...

Страница 91: ...154A 145G 145H 145J 154B 170A 151A 151B 167B EV REFRIGERATOR PARTS PANTRY Caution Use the part number to order part not the position number 89 ...

Страница 92: ...0A 233A 231A 212G 244A 212J 286A 286A 243A 243A S27 S27 243B 243B 262E 262E 244A 212J 250A 200A 203A 201A 212J 212A 249F 249E 621C 621B 249A 249B 250B 250B EV DOOR PARTS CAUTION use the part number to order part not the position number 90 212K 212K 212K 212K ...

Страница 93: ... EV WATER ICEMAKER PARTS CAUTION use the part number to order part not the position number 619C S31 600A 91 627A 616E 622B ...

Страница 94: ...June 2011 MFL62526036 ...

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Содержание LFC20770SB

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LG LFC20770SB, Руководство по обслуживанию

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Содержание LFC20770SB

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