Low
d.02 on Vaillant ecoFIT Pure 412

Your boiler is taking a short rest between heating cycles to protect its internal parts, which is a normal part of its operation.

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

Burner anti-cycling time in heating mode

Engineer required

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

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Related fault codes

d.00View →F.22View →

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