Low
S.16 on Vaillant Turbomax Plus 828 E

Your boiler is currently running its internal fan to clear out hot air after use, which is a normal part of the cooling process after you turn off a hot tap.

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)

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.17View →

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