Fault Codes / Airwell / P6

AI

Airwell P6

Critical

YHD — Compressor startup failure.

Airwell P6: Compressor startup failure. This fault typically halts operation and needs immediate attention.

Possible causes

Compressor locked / no pressure equalization.

Check steps

Allow pressure equalization, check inverter.

Affected parts

Verdichter
Inverter-PCB

Safety note

High voltage! Let capacitors discharge.

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 High pressure protection (outdoor).P0 Low pressure protection.P1 Compressor overcurrent.P2 IPM protection / inverter fault.P4 Incorrect phase sequence / phase loss.P7