Fault Codes / LG / CH05

Multi V / Split — Indoor/outdoor communication error — indoor unit stops.

Possible causes

• Interconnect wiring faulty/loose.
• Wrong polarity / noise.
• PCB faulty.

Check steps

• Check interconnect wiring & polarity.
• Check voltage on comm line.
• Restart both units.

Affected parts

• Verbindungsleitung
• PCB

Safety note

Source: LG Air Conditioning Fault Codes (LG Electronics Australia); LG Multi F(DX) Fault Codes Sheet

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

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