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Model reference

LG LFX25978SW

Refrigerator

3 documents14 error codes17 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual85 pg
    Covers this model
  • Refrigerator Service Manual84 pg
    Covers this model
  • Refrigerator Service Manual81 pg
    Covers this model
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Error codes (14)

CodeMeaning
Er CFAbnormality of BLDC fan motor for mechanic room (condenser fan)Er COCommunication error between Micom of Main PCB and Display Micom.Er dHPoor defrosting errorEr dSDefrosting sensor error caused by short or disconnection of the defrosting…Er FFAbnormality of BLDC fan motor for freezerEr FSFreezer sensor error caused by short or disconnection of the freezer sensor.Er gFFlow meter (sensor) defect caused by error of flow meter, water input, or low…Er IFAbnormality of BLDC fan motor for ice makingEr ISIcing sensor error caused by short or disconnection of the icemaker-related…Er ItIce maker kit defect due to electrical system error such as motor, gear, Hall…Er rFAbnormality of BLDC fan motor for refrigeratorEr rSRefrigerator sensor error caused by short or disconnection of the refrigerator…Er rtRoom temperature sensor error caused by short or disconnection of the room…Er SSPantry sensor error caused by short or disconnection of the pantry sensor.

Service modes (17)

  • Display Check FunctionSimultaneously press Ultra Ice button and freezing temperature adjustment button for a second…
  • Display Mode (Demo/Showroom)With the refrigerator door open, press and hold the Refrigerator Temp Button and ICE PLUS Button…
  • Display Mode (Showroom/Demo)With refrigerator door open, press and hold the Refrigerator Temp Button and ICE PLUS Button for…
  • Error Code CheckWithin 3 hours after an error
  • Error Code Check (within 3 hours of error)Press the Ice Plus button and Freezer button simultaneously.
  • Error Code Check (within 3 hours)Press the Ice Plus button and Freezer button simultaneously.
  • Ice-detecting Sensor Diagnosis1
  • Icemaker Test ModePress and hold the FILL Key on the icemaker for about 3 seconds.
  • Power Save Mode TogglePress the ICE PLUS Button and Freezer TEMP button simultaneously for more than 5 seconds.
  • Temperature Display Toggle (°F/°C)Press and hold the FRZ TEMP and the REF TEMP keys at the same time for over 5 seconds.
  • Test Mode 1 (All On)Push the test button on the Main PCB 1 time
  • Test Mode 1 (Comp/Damper/All FAN on)Push the test button on the Main PCB 1 time
  • Test Mode 2 (Damper closed)Push the test button on the Main PCB 2 times
  • Test Mode 3 (Forced defrost mode)Push the test button on the Main PCB 3 times
  • Test Mode 3 (Forced defrost)Push the test button on the Main PCB 3 times
  • Toggle °F / °CPress and hold the FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.
  • Toggle °F/°C DisplayPress and hold FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.

Full entry steps, exit procedures, and test sequences are available in Max.

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