Error code reference

LG Air Conditioner Error Code E202

Communication error between indoor and outdoor units (communication error on all indoor units, outdoor unit communication cable error).

SourceLG System Air Conditioner Outdoor Unit - Full Service Manual (AM100/120/140/160 Series)p. 4-9

Diagnostic procedure

The full E202 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
1
First diagnostic step
Check electrical connection and setting; verify communication cable is not short/open.

SourceLG System Air Conditioner - Service Manual (AC090-AC140 Series)p. 4-3

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

4 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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