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Model reference

LG GR-L503B

Refrigerator

1 document7 error codes7 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual135 pg
    Covers this model
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Error codes (7)

CodeMeaning
Er CFMachine room BLDC fan motor failureEr COCommunication failure between main PCB and display PCBEr dHDefrost heater failureEr dSFrost removal (defrost) sensor failureEr FFFreezing room BLDC fan motor failureEr FSFreezer sensor failureEr rSRefrigerator sensor 1 failure

Service modes (7)

  • Buzzer Sound Mute ModePress and hold the Express FRZ button for more than 5 seconds until recognition sound 'Ding~' is…
  • Display Power Saving ModePress Freezer and Express FRZ buttons simultaneously and hold for 5 seconds until all LEDs turn ON…
  • Exhibition (Demo) ModePress Express FRZ button and REFRIGERATOR button simultaneously for more than 5 seconds until…
  • Ice Maker Test FunctionPress the test switch under the ice maker for more than 0.5 second (or 2 seconds for water amount…
  • LED Check FunctionPress freezer and refrigerator temperature control buttons simultaneously for more than 1 second.
  • Test Mode 1 (Compulsory Freezing Force Mode)Press the test button on the main PCB once.
  • Test Mode 2 (Compulsory Frost Removal Mode)Press the test button on the main PCB once while in Test Mode 1.

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