Low
S.16 on Vaillant Turbomax Plus 828

Your boiler is continuing to run the fan for a short period after you have finished using hot water to help the unit cool down safely.

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

Fan over run (hot water operation)

DIY fix possible

No action is required as this is a normal operating status and not a faultEnsure hot water taps are fully closedMonitor the display to see if it changes back to a heating or standby code after a few minutes

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Related fault codes

S.10View →S.14View →

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