Low
S.07 on Vaillant aquaPLUS

Your boiler is briefly keeping the pump running after heating has turned off to help the system 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

Pump over run (heating operation)

DIY fix possible

Check that all your radiator valves (TRVs) are not fully turned off at the same timeEnsure the central heating system is pressurized between 1.0 and 1.5 barMonitor the boiler to see if it moves to a standard 'S.0' standby code after a few minutes

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Related fault codes

S.08View →F.20View →

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