Fault Codes / Bosch / A01 (5432)

Bosch A01 (5432)

High

Compress — Pressure sensor disconnected/faulty.

Bosch A01 (5432): Pressure sensor disconnected/faulty. This fault noticeably affects operation.

Possible causes

Pressure sensor link interrupted / wrong voltage.

Check steps

Check pressure sensor connector & supply voltage.
Replace sensor if faulty.

Affected parts

Drucksensor

Safety note

High-pressure side & follow F-Gas.

Source: Bosch/IVT/Buderus Compress Wärmepumpe Alarm-Tabelle (lvisawo.fi/jseducation.se resmi servis kılavuzu aynası) — Confirmed via BOSCH-Vikakoodit-AW.pdf (general table): cause code 5432 = 'Warning heat pump Z1 pressure sensor low pressure JR0 failure', Installer level, caused by gap in cabling/terminal 17,19 on IO

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

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