LG LMXS307*6S Series Owner's Manual
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LG LMXS307*6S Series Owner's Manual

“a next 4” series refrigerator, customchill drawer
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"A Next 4" Series Refrigerator
LMXS307*6S w/ CustomChill™ Drawer
LG Electronics Training Center, LGEAI, U.S.A.

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Summary of Contents for LG LMXS307*6S Series

  • Page 1 “A Next 4” Series Refrigerator LMXS307*6S w/ CustomChill™ Drawer LG Electronics Training Center, LGEAI, U.S.A.
  • Page 2 Information Web-Based Training Website  http://www.lglearnservice.com   Global Service Front System (GSFS) Website - including Service Content System http://gsfs-america.lge.com  Product Information Website  http://www.lg.com  LG Electronics Training Center, LGEAI, U.S.A.
  • Page 3 Electrical Circuits and Electrical Circuit Troubleshooting with  Hands on Breakdown of Error Codes  Linear Compressor Troubleshooting  The Signature Refresh Overview  Review of Current Service Bulletins  Final Question and Answers.  LG Electronics Training Center, LGEAI, U.S.A.
  • Page 4 Warranty of the A Next 4 LG Electronics Training Center, LGEAI, U.S.A.

  • Page 5: Warranty

    Warranty From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 6 Warranty From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.

  • Page 7: Warranty Limitations

    Warranty From the Owners Manual Warranty Limitations LG Electronics Training Center, LGEAI, U.S.A.

  • Page 8: Installation Procedures

    Installation Procedures LG Electronics Training Center, LGEAI, U.S.A.

  • Page 9: Installation

    Installation From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 10 Installation Freezer and Refrigerator Doors From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 11 Installation Removing the Left and Right Doors From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 12 Installation Leveling and Door Adjustment From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 13 Information Given to the Customer at Point of Sale LG Electronics Training Center, LGEAI, U.S.A.
  • Page 14 Air Flow Configuration at the Bottom of the Refrigerator Refrigerator Machine Compartment Cover in the back Note the Rubber Strip on the bottom of the Refrigerator is now positioned front to back instead of left to right on newer refrigerators. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 15 “A NEXT 4” Series Specifications LG Electronics Training Center, LGEAI, U.S.A.

  • Page 16: Specification

    Top + Side LED Middle Door Air Filter Ref. Crisper 3-in-1 W/Filter Compact in Door Light Frz. Handle Ez Open Filter Layout 3 Layer Door Reed Switch Glide-out Shelf Feature Door Switch Reed Type LG Electronics Training Center, LGEAI, U.S.A.
  • Page 17 Specification – Dimension A NEXT4 Signature 1 - 4D (S1) (N4) 36.3 41.9 10.6 22.2 14.3 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 18 Drawer is opened. and the dispenser mode. Custom Chill Drawer™ EZ Handle  Easily opens the freezer door. LED Light  LED lights up when the freezer door is opened. Freezer  Preserves frozen food. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 19 This makes spreading butter and slicing cheese easier. Easy Reach™  You can store small items, or defrost an item. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 20 Feature Changes on the A Next 4 Platform LG Electronics Training Center, LGEAI, U.S.A.

  • Page 21: Fresh Air Filter

    Fresh Air Filter Air purifying system Module type (with fan) 1 Step Total care Filtration •1 Deodorization filter Odor Deodor Pure air LG Electronics Training Center, LGEAI, U.S.A.
  • Page 22 Feature Changes – Glide N’ Access™ A NEXT 4 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 23 Feature Changes – Door Switches A NEXT 4 Reed Switch Magnet LG Electronics Training Center, LGEAI, U.S.A.
  • Page 24 Feature Changes – Drawer Switches A NEXT 4 Reed Switch LG Electronics Training Center, LGEAI, U.S.A.
  • Page 25 Feature Changes – Ice Bin A NEXT 4 New Parts LG Electronics Training Center, LGEAI, U.S.A.
  • Page 26 Feature Changes – Water Filter A NEXT 4 Previous Location of filter on Signature models. Previous Design LG Electronics Training Center, LGEAI, U.S.A.
  • Page 27 Feature Changes – CUSTOMCHILL™ Drawer A NEXT 4 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 28 Feature Changes – CUSTOMCHILL™ Drawer A NEXT 4 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 29 Feature Changes – Freezer Drawers A NEXT 4 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 30 They allow small items to be stored with easy access. The temperature inside the Easy Reach™ is slightly lower than in the shelf or door bin area. This provides an accessible location to defrost or thaw items. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 31 Disassembly Procedures and Hands on Teardown LG Electronics Training Center, LGEAI, U.S.A.
  • Page 32 Caution To reduce the risk of electrical shock, the appliance should be unplugged when ever disassembling or reassembling components with electrical connections. LG Electronics Training Center, LGEAI, U.S.A.

  • Page 33: Single Button Control

     Damper (M-Room Stepping Motor) from Fresh Food Compartment to control cold air flow  Separate Heater (M-Htr) to allow for higher temperature setting than Fresh Food Compartment  Separate Door Switch (M/FU-Door Switch) and Light (M/FU LED Lamp) Single Button Control LG Electronics Training Center, LGEAI, U.S.A.

  • Page 34: Custom Chill™ Drawer

    Custom Chill™ Drawer LG Electronics Training Center, LGEAI, U.S.A.

  • Page 35: Tools Needed

    1. Put a screw in the center of display. 3. Put the screw up by using a pliers. 6. Put display down and Press Display 4. Disassemble Housing. 5. Assemble housing to New display. until assemble thoroughly. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 36 Custom Chill Drawer Removal 2. Separate housing. Disconnect electrical Cable. 1. Pull the drawer open to full extension. 3. Pull out door. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 37 Custom Chill Drawer (Cover & Door S/W) 1. Remove screw. 2. Remove screw. 3. Unhook cover 6. Remove screw. 4. Disassemble housing. 5. Disassemble housing from cover. 7. Disassemble sensor from connector rail. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 38 Connector Ice Maker Bucket City Water Water Line Filter Water Water Tank Valve Valve Connector Water Disp’ Valve Flow City  Filter Water Water Tank Module Design Connectors 9 EA (Filter/Tank/Valve Connecting Point Delete) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 39 ③ 5. Replace the new Module Filter 4. First Disconnect the Blue Tube, and then Disconnect the Orange tube. And finally the White Tube Reinstall tubing in this order : Orange → Blue→ white LG Electronics Training Center, LGEAI, U.S.A.
  • Page 40 1. Remove these 3 screw 2. Holding the Connector, turn 90˚ to disconnect from the Filter head Turn the Water Tank 90˚ to disconnect the Filter head 4. Module Filter part are now separated 3. Remove Snap Ring LG Electronics Training Center, LGEAI, U.S.A.
  • Page 41 Removing the Multi Duct Assembly Multi Duct Assembly LG Electronics Training Center, LGEAI, U.S.A.
  • Page 42 Removing the Multi Duct Assembly Screws behind covers Remove these Covers No Screw Present Remove Screws LG Electronics Training Center, LGEAI, U.S.A.
  • Page 43 Removing the Multi Duct Assembly Disconnect LG Electronics Training Center, LGEAI, U.S.A.
  • Page 44 Removing the Multi Duct Assembly Refrigerator Evaporator LG Electronics Training Center, LGEAI, U.S.A.
  • Page 45 Removing the Custom Chill Door Remove this bin LG Electronics Training Center, LGEAI, U.S.A.
  • Page 46 Removing the Custom Chill Door Disconnect this Connection LG Electronics Training Center, LGEAI, U.S.A.

  • Page 47: Removing The Freezer Door

    Removing the Freezer Door Open Freezer Door to full open position. Remove Freezer Bins. Remove the two screws on the Left and Right Rails. Lift off door. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 48 Removing the Freezer Evaporator Cover Freezer Evaporator Cover LG Electronics Training Center, LGEAI, U.S.A.
  • Page 49 Removing the Freezer Evaporator Cover Remove Screws LG Electronics Training Center, LGEAI, U.S.A.
  • Page 50 Removing the Freezer Evaporator Cover 3 on the Bottom of the Cover LG Electronics Training Center, LGEAI, U.S.A.
  • Page 51 Removing the Freezer Evaporator Cover Remove these electrical connectors LG Electronics Training Center, LGEAI, U.S.A.
  • Page 52 Removing the Freezer Evaporator Cover Cover Removed LG Electronics Training Center, LGEAI, U.S.A.
  • Page 53 Removing the Freezer Evaporator Cover Back of Cover LG Electronics Training Center, LGEAI, U.S.A.
  • Page 54 Removing Freezer Switch Electrical connect to Lower Freezer Magnetic Switch LG Electronics Training Center, LGEAI, U.S.A.
  • Page 55 Accessing Dispenser Board (Sub PCB) Remove this Screw LG Electronics Training Center, LGEAI, U.S.A.

  • Page 56: Removing The Display Panel

    Removing the Display Panel Lock the display and Carefully pull forward as you disengage remove the Drip Pan the clips holding the assembly Display PCB Cap Duct Motor Cap Duct Door LG Electronics Training Center, LGEAI, U.S.A.
  • Page 57 Electrical Circuits and Electrical Circuit Troubleshooting with Hands on LG Electronics Training Center, LGEAI, U.S.A.
  • Page 58 Caution When doing live electrical checks the risk of fatal electrical shock are always present. These checks should only be done by qualified personal. Extreme caution should always be observed. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 59 Freezer Heater Circuit Freezer Defrost Sensor Freezer Defrost Heater Thermal Fuse LOAD CIRCUIT COMMUNICATION CIRCUIT MAIN PCB LG Electronics Training Center, LGEAI, U.S.A.

  • Page 60: Defrost Cycle

    Defrost Cycle 13° F 46º F LG Electronics Training Center, LGEAI, U.S.A.
  • Page 61 Refrigerator Heater Circuit Thermal Fuse Refrigerator Defrost Sensor LOAD CIRCUIT COMMUNICATION CIRCUIT LG Electronics Training Center, LGEAI, U.S.A.

  • Page 62: Cooling Process

    Cooling Process User Main PCB Interface MAIN PCB MAIN PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 63 Cooling Process User Interface Main PCB CON 7 MAIN Freezer Refrigerator Sensor Sensor LG Electronics Training Center, LGEAI, U.S.A.
  • Page 64 Cooling Process Main LG Electronics Training Center, LGEAI, U.S.A.
  • Page 65 Cooling Process MAIN PCB 3 Way Valve LG Electronics Training Center, LGEAI, U.S.A.
  • Page 66 Cooling Process Fresh food fan Freezer fan Condenser fan LG Electronics Training Center, LGEAI, U.S.A.
  • Page 67 Flex Tray Ice Maker The Flex Tray Icemaker on the A Next 4 model unlike the Flex Tray on the previous Signature Models is now controlled by the CON 402 connector at the Main PCB. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 68 Flex Tray Ice Maker Ice Level Sensors Test Button Ice Maker on/off Switch LG Electronics Training Center, LGEAI, U.S.A.
  • Page 69 Icemaker is now Controlled by the Main PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 70 Testing the Icemaker Test Button Step 1: Press the for 3 seconds. If the ice make runs the harvest and water cycle correctly the icemaker’s mechanism is preforming correctly. Proceed to Step 2. Test Button LG Electronics Training Center, LGEAI, U.S.A.
  • Page 71 Testing the Icemaker LG Electronics Training Center, LGEAI, U.S.A.
  • Page 72 Water to the Icemaker The Pilot Valve is located in the Machine Compartment. The Ice Valve is located in a compartment in the left side Refrigerator door. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 73 Other Components used in Ice Production Process Pilot Valve The Flow Sensor is incorporated into the Pilot Valve. Ice Room Fan LG Electronics Training Center, LGEAI, U.S.A.
  • Page 74 Home Bar Heater The Home Bar Heater LG Electronics Training Center, LGEAI, U.S.A.
  • Page 75 Smart Buzzer PCB and Humidity Sensor Humidity Sensor Speaker Smart Buzzer PCB Room Temperature Sensor Components located in the Right Door Hinge Cap LG Electronics Training Center, LGEAI, U.S.A.
  • Page 76 Sub PCB (Dispenser PCB) To Access PCB, remove screw. Sub PCB or Dispenser PCB The Sub PCB or also referred to as the Dispenser PCB is located at the top of the Left Fresh Food Door LG Electronics Training Center, LGEAI, U.S.A.
  • Page 77 Sub PCB Relay 4 (Pilot Valve Water) Relay 3 (Water Dispenser Valve) Relay 2 (CRUSH) Relay 1 (CUBE) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 78 Display PCB activates these components.  Auger Motor (crushed and cubed)  Pillar Heater (center Fresh Food Mullion Heater)  Pilot Valve for Dispensed Water  Secondary Valve for Dispensed Water  Cap Duct Motor LG Electronics Training Center, LGEAI, U.S.A.

  • Page 79: Crushed Ice

    Crushed Ice WIRE COLOR GREEN: Neutral Circuit BLUE: Run Winding Circuit RED: Start Winding Circuit 5Vdc to Dispenser PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 80 Cubed Ice WIRE COLOR GREEN: Neutral Circuit BLUE: Run Winding Circuit RED: Start Winding Circuit 5Vdc to Dispenser PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 81 Dispensing Water from the Dispenser Pilot Valve Water Secondary Valve 5Vdc to Dispenser PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 82 Cap Duct Door Motor LG Electronics Training Center, LGEAI, U.S.A.
  • Page 83 Smart Diagnosis Instructions From the Owners Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 84 Getting in and out of the Demo Mode With the refrigerator door in the open position, press and hold Refrigerator Adjust & Ice Plus buttons O/FF until displayed. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 85 Breakdown of Error Codes LG Electronics Training Center, LGEAI, U.S.A.

  • Page 86: Error Codes

    Error Codes From the Service Manual LG Electronics Training Center, LGEAI, U.S.A.
  • Page 87 Pantry Sensor hold the Freezer and Ice Plus buttons together. “ Error Error Test Points at Main PCB (ref. sensor) Room Sensor Freezer Defrost Error Sensor Error Refrigerator Defrost Sensor Error Humidity Sensor Error LG Electronics Training Center, LGEAI, U.S.A.
  • Page 88 0.56 Vdc 35 ℃ 95 ℉ 7.40 KΩ 1.10 Vdc 35 ℃ 95 ℉ 1.69 KΩ 0.47 Vdc 40 ℃ 104 ℉ 6.20 KΩ 0.96 Vdc 40 ℃ 104 ℉ 1.39 KΩ 0.39 Vdc LG Electronics Training Center, LGEAI, U.S.A.

  • Page 89: Fan Errors

    Remember the error will occur after 3 failed attempts (see Chart) and takes up to 3 hours before it is displayed. Refrigerator Fan Error Feedback voltage normally 2 to 4 Vdc Condenser Fan Error Normal voltage to fan motor 9 to 15 Vdc LG Electronics Training Center, LGEAI, U.S.A.
  • Page 90  If the error is displayed and the power to the refrigerator is disconnected the error will be erased and will not return until after the next defrost cycle. Refrigerator Defrost Error Fresh Food Freezer MAIN PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 91  This Error can only be brought up manually. It will not automatically display this error. Flow Meter Error For a ER gF Error check the water valves and ER iT Error most likely will be a failure of the the flow meter on the pilot valve. Icemaker Kit LG Electronics Training Center, LGEAI, U.S.A.
  • Page 92 Check the signal at either Main PCB, Display PCB or harness at top of Left door a good signal will be a pulsing 5Vdc. CON 101 on Display PCB Connector at the Left Door Hinge. CON5 on the Main PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 93 Checking for Error Codes Press and hold the Freezer Adjust & Ice Plus buttons. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 94 Linear Compressor Troubleshooting LG Electronics Training Center, LGEAI, U.S.A.
  • Page 95 C. 1. Reset Power 2. Replace PCB if out of specification. Reference to Point A=2.2 to 2.8Vdc Reference to Point B=2.2 to 2.8Vdc Reference to Point C=2.2 to 2.8Vdc With compressor off LG Electronics Training Center, LGEAI, U.S.A.
  • Page 96 2. If compressor works intermittently and blinks. a. Make sure condenser fan and Freezer is running. b. Check for Sealed System issues, such as leak or restriction . Logic: Compressor is forced off and tries to start after 1 minute. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 97 Prevent Over voltage and Current Detecting when starting. Starting Error of the PCB and Compressor, Cause: Capacitor Harness or Capacitor, Open Compressor Winding. Compressor is forced off and tries to restart Logic: within 40 seconds. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 98 Reason for the Fault: Cylinder, Cylinder Piston damaged. or restricted Cause: discharge. This can be caused by foreign material inside the compressor Logic: Compressor is forced off and tries to restart within 2.5 seconds. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 99 Ambient temperature is high (over 43º C ) and or the Cause: refrigerator’s air movement is restricted, Condenser Fan Stopped, Restricted Discharge line, Compressor Damage, or IPM is defective. Compressor is forced off and tries to restart after 6 Logic: minutes. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 100 Dead Short at the IPM. Test for a dead at Point A with a VOM. Compressor is Forced off and tries to restart in 20 seconds. Logic: With refrigerator unplugged check for a dead short at CON201 pins 1 & 3. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 101 Detects Set Control MICON and Communication Errors. Reason for the Fault: Cause: Communication Error. LED Blink (Compressor runs reference value before occurring Logic: Communication Error. Check the temperature and pressure of Make sure the condenser fan is the compressor running. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 102 Measuring the Resistance on the Linear Compressor LG Electronics Training Center, LGEAI, U.S.A.
  • Page 103 Quick Inverter Check LG Electronics Training Center, LGEAI, U.S.A.

  • Page 104: Main Pcb Schematic

    Main PCB Schematic LG Electronics Training Center, LGEAI, U.S.A.
  • Page 105 Schematic of Display and Sub PCB (Dispenser PCB LG Electronics Training Center, LGEAI, U.S.A.
  • Page 106 The Signature Refresh Overview LG Electronics Training Center, LGEAI, U.S.A.
  • Page 107 Quick look at the Signature Refresh In the later portion of 2014, LG updated their French- Signature Refresh Door Refrigerator product line. Another designs that has evolved from the previous “Signature Series” (31 cu. Ft. series), the “Signature Refresh” .
  • Page 108 Signature Refresh Feature Changes – Glide N’ Access™ Signature LG Electronics Training Center, LGEAI, U.S.A.
  • Page 109 Signature Refresh Feature Changes – Ice Bin Signature New Parts LG Electronics Training Center, LGEAI, U.S.A.
  • Page 110 Feature Changes – Smart Grid Signature Refresh Signature (S) Signature Refresh Smart Grid Ice On/Off LG Electronics Training Center, LGEAI, U.S.A.

  • Page 111: Smart Grid

    Signature Refresh Utility Utility Cloud Service Gateway ThinQ Server Click REF Manager Click Smart Saving Turn Demand Response If refrigerator is receiving signals from utility, functionality on Refrigerator will lower energy usage during Event Time. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 112 Smart Amp Signature Refresh Click REF Manager Adjust Temperature or Sync . Send Adjustment to Turn Ice Plus On Refrigerator LG Electronics Training Center, LGEAI, U.S.A.
  • Page 113 Smart Amp Signature Refresh LG Electronics Training Center, LGEAI, U.S.A.
  • Page 114 Ice Maker (Gen3) Crisper 3-in-1 3-in-1 W/Filter Compact Compact Light Frz. Handle Ez Open Ez Open Layout 3 Layer 3 Layer Door Reed Switch Glide-out Shelf Feature Door Switch Push Button Type Reed Type LG Electronics Training Center, LGEAI, U.S.A.
  • Page 115 Feature Changes – Door Switches Signature Refresh With the new models of LG Refrigerators, there is a new design Door Switch being used. This new Door Switch employs an internal reed switch and magnets in the door to operate. Therefore, there is nothing protruding, as seen in the previous design.
  • Page 116 Door Hinge Covers New Models Previous Models LFX329** LFXS327** LFX319** LFXS307** LFX299** LFXS296** LFX259** LFXC247** LMXS307** LG Electronics Training Center, LGEAI, U.S.A.
  • Page 117 Feature Changes – Drawer Switches Signature Refresh Note that on the Freezer Drawer Switches, LG is now using the same type od Switches that are now used on the doors. Once again, there are no physical protrusions.  Please use caution when handling the corresponding Drawers and make sure to not damage the magnet housing.
  • Page 118 On these models, the Ice Maker is turned On or Off by holding the “Ice Plus | Ice In/Off” button on the Display Panel for 3 seconds. Signature Refresh only Previous Models On / Off Switch On / Off Switch (at Display) Twist-N-sever icemaker LG Electronics Training Center, LGEAI, U.S.A.
  • Page 119 The Signature Refresh Left Door still has a provision in the molding for LEDs, however, it is not used. Previous Models New Models Left Door Left Door Right Door Right Door 3 LEDs 4 LEDs LG Electronics Training Center, LGEAI, U.S.A.
  • Page 120 Signature Refresh In the Signature models, the Sub-PCB (Dispenser/Relay Board) was located behind the Dispenser. In the Signature Refresh model, the Sub-PCB is located in the top of the Left Door. Signature Signature Refresh (SR) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 121 1.Reverse the Sub,PCB cover. 2. Carefully lift the cover 2.Connect wire harness. 3.Reverse the cover. 3.Connect the capacitor housing. 4.Disconnect capacitor housing. 4.Insert the cover, left edge first.. 5.Disconnect wire harness. 5.Assemble 1 screw. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 122 Signature Refresh Heaters Water Pipe Heater DID Heater Ice Maker Heater Pillar Heater R-Evap. Heater Drain Heater Beta-Duct Heater F-Evap. Heater 1 Ice-Room Fan Heater F-Evap. Heater 2 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 123 Signature Refresh Additional Heaters R - Eva R Eva F Eva F - Eva LG Electronics Training Center, LGEAI, U.S.A.
  • Page 124 Signature Refresh Additional Heaters Drain Heater Ice Room Heater LG Electronics Training Center, LGEAI, U.S.A.
  • Page 125 Review of Current Service Bulletins LG Electronics Training Center, LGEAI, U.S.A.
  • Page 126 Current Service Bulletins SB-1406-002 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 127 Current Service Bulletins SB-1406-002 (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 128 Current Service Bulletins SB1409001 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 129 Current Service Bulletins SB1409001 (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 130 Current Service Bulletins SB1409001 LG Electronics Training Center, LGEAI, U.S.A.
  • Page 131 Current Service Bulletins CREF20141610 (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 132 Current Service Bulletins CREF20141610 (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 133 Current Service Bulletins CREF20141610 (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 134 Current Service Bulletins CREF20141610 (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 135 Current Service Bulletins LG Electronics Training Center, LGEAI, U.S.A.
  • Page 136 Current Service Bulletins (continued) LG Electronics Training Center, LGEAI, U.S.A.
  • Page 137 Final Question and Answers LG Electronics Training Center, LGEAI, U.S.A.
  • Page 138 3. What is the status of the refrigerator and freezer fans when the doors are in the opened position? a. On b. Off c. Standby d. Intermittent 4. TRUE or FALSE: The Ice Room Fan turns on during defrost and when the doors are open. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 139 A different position on the Control Panel d. It has not been moved 7.Once the ice has been dispensed, how long will the cap duct door remain open? a. It immediately closes b. 1 second c. 3 seconds d.5 seconds LG Electronics Training Center, LGEAI, U.S.A.

  • Page 140: Communication Errors

    Main PCB not communicating with the display PCB d. The Thermal Fuse is bad 10.What is generated when the Main PCB registers 0 or 5Vdc at the sensor connection? a. Fan errors b. Sensor Errors c. Defrost Errors d. Communication Errors LG Electronics Training Center, LGEAI, U.S.A.
  • Page 141 3. What is the status of the refrigerator and freezer fans when the doors are in the opened position? a. On b. Off c. Standby d. Intermittent 4. TRUE or FALSE: The Ice Room Fan turns on during defrost and when the doors are open. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 142 It has not been moved 7.Once the ice has been dispensed, how long will the cap duct door remain open? a. It immediately closes b. 1 second c. 3 seconds d. 5 seconds LG Electronics Training Center, LGEAI, U.S.A.
  • Page 143 Main PCB not communicating with the display PCB d. The Thermal Fuse is bad 10.What is generated when the Main PCB registers 0 or 5Vdc at the sensor connection? a. Fan errors b. Sensor Errors c. Defrost Errors d. Communication Errors LG Electronics Training Center, LGEAI, U.S.A.
  • Page 144 • Electrical Circuits and Electrical Circuit Troubleshooting with Hands on • Breakdown of Error Codes • Linear Compressor Troubleshooting • The Signature Refresh Overview • Review of Current Service Bulletins • Final Question and Answers. LG Electronics Training Center, LGEAI, U.S.A.
  • Page 145 Extras LG Electronics Training Center, LGEAI, U.S.A.
  • Page 146 Hard to Find Part Numbers - REF UV Dye Driers Inlet Dia. P/no Type Detail ADH73150202 Standard ID 2.2mm 1 Eva ADH73150207 w/ Charge Port ADH73150201 Standard ID 4.2mm 2 Eva ADH73150206 w/ Charge Port Varied ADH73150208 Either w/ Extension LG Electronics Training Center, LGEAI, U.S.A.
  • Page 147 Refrigerator, Room Temperature & Defrost Sensors 6500JB2002B – Navy Blue Leads (sub to 6500JB2002T)  Freezer, Icing Room & IM Tray Sensors 6500JB2001B 6500JB2002B Universal Replacement Refrigerator Sensors / Splice using solder & heat shrink tubing! LG Electronics Training Center, LGEAI, U.S.A.
  • Page 148 These items are available through your Fluke 8845A-EFPT Test Lead Adapters local supplier or an internet supplier.  These are not available through LG. Other mfg’s. offer similar test lead  adapters. See your local supplier or visit the internet.

  • Page 149: Exploded View

    Exploded View LG Electronics Training Center, LGEAI, U.S.A.
  • Page 150 Exploded View LG Electronics Training Center, LGEAI, U.S.A.
  • Page 151 Exploded View LG Electronics Training Center, LGEAI, U.S.A.
  • Page 152 Exploded View LG Electronics Training Center, LGEAI, U.S.A.

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