Medium
222-F on Viessmann Vitorond 100

Your boiler has temporarily stopped because it detected air in the system and is now running an automatic process to clear it out.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Burner blocked. The venting program automatically starting

DIY fix possible

Wait for the automatic venting program to finish (this can take up to 20 minutes)Check that your system water pressure is between 1.0 and 1.5 barEnsure all radiator valves are fully open to help air circulate out

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