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Model reference

LG AST2LGA

Refrigerator

3 documents10 error codes10 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual52 pg
    Covers this model
  • Refrigerator Service Manual52 pg
    Covers this model
  • Refrigerator Service Manual52 pg
    Covers this model
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Error codes (10)

CodeMeaning
Er CFAbnormality of BLDC fan motor for mechanic room (condenser)Er COCommunication error between MICOM of Main PCB and Display MICOM.Er dHPoor defrostingEr dSDefrosting sensor error caused by short or disconnection of defrosting sensor.Er FFAbnormality of BLDC fan motor for freezerEr FSFreezer sensor error caused by short or disconnection of freezer sensor.Er IFAbnormality of BLDC fan motor for ice makingEr ISIcing sensor error caused by short or disconnection of icing sensor.Er rSRefrigerator sensor error caused by short or disconnection of refrigerator…Er rtRoom temperature sensor error (displayed when ICE PLUS key and Freezer Temp key…

Service modes (10)

  • Display Temperature Unit Toggle (°F/°C)Press and hold the FRZ TEMP and REF TEMP keys at the same time for over 5 seconds.
  • Icemaker Test ModePress and hold the Fill Key on the icemaker for 3 seconds.
  • LED Check FunctionSimultaneously press Ice Plus button and Freezer Temperature adjustment button for one second.
  • RESETPush test button one time while in TEST3 mode.
  • RESET (Exit Test Mode)Push the test button one time while in TEST3 mode.
  • TEST1 (Forced Cooling)Push test button one time on the Main PCB controller.
  • TEST2 (Damper Close)Push test button one time while in TEST1 mode.
  • TEST2 (Forced Cooling, Damper Closed)Push the test button one time while in TEST1 mode.
  • TEST3 (Forced Defrost)Push test button one time while in TEST2 mode.
  • TEST3 (Forced Defrosting)Push the test button one time while in TEST2 mode.

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

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