Low
S.07 on Vaillant Home System

Your boiler is briefly running its internal pump after a heating cycle to safely move remaining heat away from the unit.

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: Pump overrun

DIY fix possible

No action is required as this is a normal operational status message.Ensure your radiator valves are open to allow heat to dissipate.Wait a few minutes for the boiler to return to standby mode.

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