Vaillant Combi Boiler

Vaillant combi boiler models, guide, comparison, parts, manual, drawings, help

F 61

My boiler stopped working this afternoon, it appears on the screen “!F61”. Could you please advise how to solve this problem. It’s only less 2 years old.
Many thanks.
Kind regards,



Hi Ying,

This really depends on the model you have.  The F.61 fault code usually refers to a Faulty Gas-valve controller.  There may also we an earth in the lines to the gas valve.

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