Fault Codes / LG / CH23

LG

LG CH23

Critical

Multi V / Split — Inverter DC voltage low.

LG CH23: Inverter DC voltage low. This fault typically halts operation and needs immediate attention.

Possible causes

Voltage distortion / supply / inverter PCB.

Check steps

Check capacitor DC voltage (~300 V DC 1Ph / ~600 V DC 3Ph).
If OK, replace inverter PCB.

Affected parts

Inverter-PCB

Safety note

High voltage! Let capacitors discharge.

Source: LG Air Conditioning Fault Codes (offiziell, LG Electronics)

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

Look up in Enthalio →

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