Bosch A01 (5302)

Critical

Compress — Compressor control system temperature over 110 °C.

Bosch A01 (5302): Compressor control system temperature over 110 °C. This fault typically halts operation and needs immediate attention.

Possible causes

Overload / high condensing pressure.
Refrigerant/flow problem.

Check steps

Check flow, charge & pressures.
Check compressor & sensors.

Affected parts

Verdichter
Sensoren

Safety note

Hot discharge side & follow F-Gas.

Source: Bosch resmi servis kılavuzu — Alarm List 8754, code 5302, Display Code A01, Installer: "Info Z1 Temperature too high on compressor control system — The temperature of the inverter's compressor control system exceeds 110°C. The compressor is stopped." Matches app's 'Verdichter-Steuerungstemperatur über 110°C'…

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

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