Low
D.96 on Vaillant Atmomax

Your boiler is currently resetting its internal software to the original factory settings, often after a control board replacement.

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

Factory setting

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.70View →D.93View →

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