Emergency
F0 on Worcester Bosch Greenstar 36 CDi Compact

Your boiler has detected an issue with the valve that controls the gas supply, meaning it has safely shut down to prevent any risk.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Gas valve error

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar Cdi Compact 6720803800 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 is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

EAView →D7View →F1View →

All 34 fault codes on the Greenstar 36 CDi Compact

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

8C9UA1A3A7A8b7C1C4C6C7CCCECFD1D3D4E2E3E4E5E9EAECEDEEEFF7FAFbFDH5TTB

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