Error code reference

LG Air Conditioner Error Code 25

Input voltage high/low error: input voltage exceeds product limits (below 270V or above 487V per phase).

SourceLG Air Conditioner - Service Manual: Outdoor Unit R410A (ARUN/ARUV)p. 98

Diagnostic procedure

The full 25 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 input voltage R~S/S~T/T~R is 380V ±10%, R~N/S~N/T~N is 220V ±10%.

SourceLG Air Conditioner - Service Manual: Outdoor Unit R410A (ARUN/ARUV)p. 98

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

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Where this code is documented

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

Models covered by the manuals that document this code

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The full 25 procedure

Where this code is documented

Models covered by the manuals that document this code

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