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Model reference

LG LP120HED

Air Conditioner

2 documents7 error codes1 service mode

Available documentation

Service Manual

  • Window Air Conditioner SVC MANUAL(Exploded View) MODEL : LP120HED-Y853 pg
    Covers this model
  • LG Packaged Terminal Air Conditioner/Heat Pump SERVICE MANUAL56 pg
    Covers this model
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  • Step-by-step diagnostics from the service manual
  • Test values, resistance specs, and wiring references
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Error codes (7)

CodeMeaning
CH 01Indoor Air Thermistor ErrorCH 02Indoor Coil Thermistor ErrorCH 03Outdoor Air Thermistor Error (PTHP Only)CH 04Outdoor Coil Thermistor Error (PTHP Only)CH 05Mode ErrorCH 06Set point ErrorCH 07Bad Thermistor Wiring

Service modes (1)

  • LED Diagnostics (Self-Diagnosis)The green OPERATION LED on the Display PCB automatically indicates errors by flashing a specific…

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

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