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Model reference

LG 79578752801

Refrigerator

4 documents10 error codes7 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual56 pg
    Covers this model
  • Refrigerator Service Manual56 pg
    Covers this model
  • Refrigerator Service Manual54 pg
    Covers this model
  • Refrigerator Service Manual54 pg
    Covers this model
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Diagnose your LG 79578752801.

  • Step-by-step diagnostics from the service manual
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Error codes (10)

CodeMeaning
Er CFAbnormality of brushless DC fan motor for mechanic (condenser) roomEr COCommunication error between the main PCB MICOM and the display MICOM.Er dHPoor defrosting errorEr dSDefrosting sensor error caused by short circuit or disconnection of the…Er FFAbnormality of brushless DC fan motor for freezerEr FSFreezer sensor error caused by short circuit or disconnection of the freezer…Er IFAbnormality of brushless DC fan motor for ice makingEr ISIcing sensor error caused by short circuit or disconnection of the icing sensor.Er rSRefrigerator sensor error caused by short circuit or disconnection of the…Er rtRoom temperature sensor error

Service modes (7)

  • Ice Maker Test ModePress and hold the Fill Key on the ice maker for 3 seconds.
  • LCD Check FunctionSimultaneously press and hold the Ultra Ice button and the Freezer Temperature adjustment button…
  • Room Temperature Sensor Error CheckPress ICE PLUS KEY and Freezer Temp KEY at the same time for one second.
  • 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 (Forced Cooling)Press test button on main PCB controller one time.
  • Test Mode 2Press test button on main PCB controller a second time (after entering Test Mode 1).
  • Test Mode 3 (Forced Defrosting)Press test button on main PCB controller a third time (after Test Mode 2).

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