High
222-F on Viessmann Vitola Biferral

Your boiler has temporarily stopped because there is air trapped in the fuel system, and it is now trying to clear it automatically.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Burner blocked. The venting program automatically starting

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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