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Model reference

LG LFX33975ST

Refrigerator

1 document17 error codes9 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual88 pg
    Covers this model
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Error codes (17)

CodeMeaning
Er CFAbnormality of BLDC fan motor for mechanical room (condenser fan); no feedback…Er COCommunication error between Micom of Main PCB and Display Micom.Er FFAbnormality of BLDC fan motor for freezer; no feedback signal for over 65…Er 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 HSHumidity sensor error caused by short or disconnection of the humidity sensor.Er IFAbnormality of BLDC fan motor for ice making; no feedback signal for over 65…Er ISIcing sensor error caused by short or disconnection of the ice maker sensor…Er ItIce maker kit defect caused by motor, gear, Hall IC, or operation circuit error…Er rFAbnormality of BLDC fan motor for refrigerator; no feedback signal for over 65…Er 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 error caused by short or disconnection of the freezer…r dHRefrigerator defrosting errorr dSRefrigerator defrost sensor error caused by short or disconnection of the…

Service modes (9)

  • Display LCD CheckSimultaneously press Ultra Ice button and freezing temperature adjustment button for a second to…
  • Display ModeWith the refrigerator door open, press and hold the Refrigerator Temp Button and ICE PLUS Button…
  • Error Code CheckWithin 3 hours after the error
  • Ice-detecting Sensor Diagnosis1
  • Icemaker Test ModePress and hold the FILL key on the icemaker for about 3 seconds. The icemaker will run through 3…
  • Temperature Display Toggle (°F/°C)Press and hold the FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.
  • 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

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