Low
d.64 on Vaillant ecoFIT Pure 425

Your boiler is providing a status update about how long it takes for the flame to light, which may indicate it is starting to struggle during ignition.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Average burner ignition time

Engineer required

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

Find a Gas Safe engineer
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Related fault codes

F.28View →F.29View →

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