Fault Codes / Airwell / P0

AI

Airwell P0

Critical

YHD — High pressure protection (outdoor).

Airwell P0: High pressure protection (outdoor). This fault typically halts operation and needs immediate attention.

Possible causes

Condenser dirty / fan / overcharge.

Check steps

Clean condenser, check fan & pressure.

Affected parts

Druckschalter (HP)
Verflüssiger

Safety note

High-pressure side & follow F-Gas.

Source: Airwell YHD/HZ Service Manual

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

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Related fault codes

Communication error.E6 Low pressure protection.P1 Compressor overcurrent.P2 IPM protection / inverter fault.P4 Compressor startup failure.P6 Incorrect phase sequence / phase loss.P7