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Model reference

LG LFX31935

Refrigerator

1 document17 error codes9 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual90 pg
    Covers this model
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Error codes (17)

CodeMeaning
Er CFCondenser fan errorEr COCommunication error between Micom of Main PCB and Display Micom, or abnormality…Er dHPoor defrostingEr FFAbnormality of BLDC fan motor for freezerEr FSFreezer sensor error caused by short or disconnection of freezer sensor.Er gFFlow meter (sensor) defectEr IFAbnormality of BLDC fan motor for ice makingEr ISIcing sensor error caused by short or disconnection of the icing sensor or ice…Er ItIce maker kit defectEr rFAbnormality of BLDC fan motor for refrigeratorEr rSRefrigerator sensor error caused by short or disconnection of refrigerator…Er rtRoom temperature sensor error caused by short or disconnection of room temp…Er SSPantry sensor error caused by short or disconnection of pantry sensor.F dHFreezer defrosting errorF dSFreezer defrost sensor errorr dHRefrigerator defrosting errorR dSRefrigerator defrost sensor error

Service modes (9)

  • Display check functionSimultaneously press Ultra Ice button and freezing temperature adjustment button for a second to…
  • Display mode (demo/showroom)With refrigerator door open, press and hold Refrigerator Temp Button and ICE PLUS Button for more…
  • Error code check (within 3 hours)Press the Ice Plus button and Freezer button simultaneously within 3 hours after error occurrence.
  • Ice-detecting sensor diagnosis1
  • Icemaker test modePress and hold the FILL key on the icemaker for about 3 seconds.
  • Test Mode 1 (Forced operation)Press the test button on the Main PCB 1 time
  • Test Mode 2 (Damper closed)Press the test button on the Main PCB 2 times
  • Test Mode 3 (Forced defrost)Press the test button on the Main PCB 3 times
  • 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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