Fault Codes / Aux / P5

AU

Aux P5

Critical

Inverter — Discharge temperature protection.

Aux P5: Discharge temperature protection. This fault typically halts operation and needs immediate attention.

Possible causes

Low refrigerant charge, high pressure ratio, or compressor overload.

Check steps

Check refrigerant charge and operating pressures.

Affected parts

Verdichter

Safety note

Hot discharge line — burn hazard.

Source: AUX Air Conditioner Error Codes Reference, official auxair.com/global/error-codes.html (© 2024 AUX)

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

Look up in Enthalio →

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