Medium
d.61 on Vaillant ecoTEC sustain

Your boiler has failed to light several times and is currently recording these failed attempts rather than performing an action.

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

Number of unsuccessful ignitions: Current value

Engineer required

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

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Related fault codes

F.28View →F.29View →

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