BoilerFaultCodesWhat the manual says
Manufacturer manualDHWmode:Pumpoverrun
What causes this fault?
This occurs when the boiler completes a heating cycle and needs to dissipate residual heat from the internal heat exchanger. The pump continues to run for a few minutes to move hot water away from the unit and prevent the internal components from overheating. It is a normal safety function rather than a mechanical failure.
This status may appear more frequently during the summer months when the boiler is only used for hot water and the central heating system is cold.
DIY fix possible
Check that the radiator valves are open to allow water to circulateMonitor the display to see if the status code changes to a normal heating modeEnsure there is enough water pressure in the system by checking the gauge
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
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