Error code reference

LG Air Conditioner Error Code 3

Abnormal operation of multi product; resetting of remote control due to simultaneous operation of cooling and heating modes.

SourceLG Multi Air Conditioner - Service Manual: C362/C482 Seriesp. 26

LG codes LG air conditioner codes

Diagnostic procedure

The full 3 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check outdoor TH assembly.

SourceLG Multi Air Conditioner - Service Manual: LM Series (Exploded View)p. 35

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

23 manuals in the MyPros+ library document this code for LG air conditioner.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full 3 procedure

Where this code is documented

Models covered by the manuals that document this code

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