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Model reference

LG LFX31925WB

Refrigerator

3 documents20 error codes18 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual90 pg
    Covers this model
  • Refrigerator Service Manual87 pg
    Covers this model
  • Refrigerator Service Manual88 pg
    Covers this model
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Error codes (20)

CodeMeaning
Er CFAbnormality of BLDC fan motor for mechanic room (condenser fan)Er CoCommunication error between Micom of Main PCB and Display Micom due to poor…Er Co2Communication error between Micom of Sub PCB and Display Micom due to poor…Er dHPoor defrostingEr 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) defectEr HSShort or disconnection of Humidity Sensor.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 defectEr 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.F dHFreezer defrosting errorF dSFreezer defrost sensor errorr dHRefrigerator defrosting errorr dSShort or disconnection of Refrigerator Defrosting Sensor.

Service modes (18)

  • Demo ModePress and hold the Enable button for approximately 5 seconds to turn ON Demo Mode
  • 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…
  • Display Mode (Showroom/Demo)With the refrigerator door open, press and hold the Refrigerator Temp button and ICE PLUS button…
  • Error code check (within 3 hours)Press the Ice Plus button and Freezer button simultaneously within 3 hours after error occurrence.
  • Error Code Display CheckTap the upper right area 3 times within 3 hours of initial error.
  • Ice-detecting sensor diagnosis1
  • Icemaker test modePress and hold the FILL key on the icemaker for about 3 seconds.
  • Test 1 Mode (Forced Operation)Press the test button on the Main PCB 1 time
  • Test 2 Mode (Damper Closed)Press the test button on the Main PCB 2 times
  • Test 3 Mode (Forced Defrost)Press the test button on the Main PCB 3 times
  • Test Mode 1Push the test button on the Main PCB 1 time
  • Test Mode 1 (Forced operation)Press the test button on the Main PCB 1 time
  • Test Mode 2Push the test button on the Main PCB 2 times
  • Test Mode 2 (Damper closed)Press the test button on the Main PCB 2 times
  • Test Mode 3Push the test button on the Main PCB 3 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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