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Model reference

LG LRDN20720BK

Refrigerator

5 documents9 error codes10 service modes

Available documentation

Service Manual

  • Refrigerator Service Manual48 pg
    Covers this model
  • Refrigerator Service Manual63 pg
    Covers this model
  • Refrigerator Service Manual50 pg
    Covers this model

Bulletin

  • Change of Compressor Mount (Rubber, Seat) on refrigerators10 pg
    Covers this model

Installation Guide

  • BOTTOM FREEZER REFRIGERATOR User's Guide36 pg
    Covers this model
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Error codes (9)

CodeMeaning
1Failure of freezer sensor (cut or short circuit wire).2Failure of refrigerator sensor (cut or short circuit wire).3Failure of defrost sensor (cut or short circuit wire).4Poor defrostEr dHFailure of defrost modeEr dSFailure of defrost sensor due to cut or short circuit wire.Er FFFailure of BLDC fan motor at freezing compartmentEr FSFailure of freezer sensor due to cut or short circuit wire.Er rSFailure of refrigerator sensor due to cut or short circuit wire.

Service modes (10)

  • Demonstration ModeSet refrigerator or freezer temperature control to the warmest temperature setting, then press and…
  • Freezer Fan RPM Variable CheckWhile freezer fan is in operation, press the WARMER key in Refrigerator and Freezer Temp Control…
  • Ice Maker Test ModePress and hold the water supply control KEY (Fill Key) for 3 seconds while in Ice Making mode.
  • Icemaker Test ModePress and hold the water supply control KEY for 3 seconds.
  • LED Check ModePress and hold the WARMER button in refrigerator temperature control and the WARMER button in…
  • Reset (from TEST)While in TEST2, press Express Freezing key and COLDER key of Freezer Temp at the same time for more…
  • Reset (from TEST2)While in TEST2 mode, press and hold Express Freezing key and COLDER key of Freezer Temp at the same…
  • Temperature °F/°C TogglePress and hold COLDER key of Freezer and COLDER key of Refrigerator simultaneously for over 1…
  • TEST1Press Express Freezing key and COLDER key of Freezer Temp at the same time for more than 3 seconds.
  • TEST2While in TEST1, press Express Freezing key and COLDER key of Freezer Temp at the same time for more…

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

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