Low
S.08 on Vaillant ecoTEC exclusive

Your boiler is perfectly fine; it is currently in a brief, mandatory rest period to prevent the system from turning on and off too frequently.

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

Heating mode: Anti-cycling time (Remaining anti-cycling time)

Engineer required

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

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Related fault codes

S.07View →S.06View →

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