Unknown
C1 on Worcester Bosch Greenstar 25Si Compact ErP

Worcester Bosch Greenstar 25Si Compact ErP fault code C1

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

Airflow stopped during operation

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar Si Compact Erp installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 52 fault codes on the Greenstar 25Si Compact ErP

Seeing a different code? Every code this model can display, in one place.

8C8E9A9U212213229234241260261276277278280285328338380A1A3A7A8b7C4C6C7CCCECFD1D3D4E2E3E4E5E9EAECEDEEEFF0F7FAFbFDH5H11H13

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