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Model reference

LG GR-B247

Refrigerator

3 documents15 error codes11 service modes

Available documentation

Service Manual

  • LG Samsung LG grl247 Micom Function and PCB Circuit Diagram27 pg
    Covers this model
  • LRSPC2051xx control function8 pg
    Covers this model
  • LRSPC2341xx control function6 pg
    Covers this model
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Error codes (15)

CodeMeaning
ErFailure of outside (ambient) temperature sensorEr CFFailure of BLDC fan motor in the machine room (no fan motor signal for more…Er COCommunication failure between main PCB and display PCBEr dHSnapping of frost removal heater or temperature fuse, pull-out of connector…Er DSSnapping or short-circuit of frost removal (defrost) sensor.Er FFFailure of BLDC fan motor in the freezing room (locked or poor motorEr FSSnapping or short-circuit of freezer sensor.Er RSSnapping or short-circuit of refrigerator sensor 2 (displayed via LCD check…F1Abnormal freezer (F) sensorF1 F2Faulty defrostF1 F3Abnormal freezer BLDC fan motorF1 F4Abnormal cooling BLDC fan motorF2Abnormal refrigerator sensor 1 (R1)F3Abnormal refrigerator sensor 2 (R2)F4Abnormal defrost sensor

Service modes (11)

  • Freezer Fan RPM Variation CheckWhile freezer fan is in operation, press freezer and refrigerator temperature control buttons…
  • LCD Check FunctionSimultaneously press the special freezing button and the freezing (cold) temperature adjustment…
  • LED Check / Hidden Sensor DiagnosticPress freezer and refrigerator temperature control buttons simultaneously for more than 1 second.
  • LED Check Mode (Hidden Fault Check)Press both the freezer temperature control button and the refrigerator temperature control button…
  • Test Mode 1 - Forced StartPress test button on main PWB once.
  • Test Mode 1 (Compulsory Operation)Press the TEST switch on the Main PCB once.
  • Test Mode 1 (Forced Operation)Press the TEST switch on the main PCB once.
  • Test Mode 2 - Check Freezer FanPress test button once while in Test Mode 1.
  • Test Mode 2 (Compulsory Frost Removal)While in Test Mode 1, press the TEST switch on the Main PCB once more.
  • Test Mode 2 (Forced Defrost)While in Test Mode 1, press the TEST switch on the main PCB once more.
  • Test Mode 3 - Forced DefrostPress test button once while in Test Mode 2.

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

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