BoilerFaultCodesTechnical description
Heating mode: Pump overrun. The pump overrun for heating mode is activated.
What causes this fault?
This status occurs when the boiler has finished heating your home and needs to dissipate the remaining heat from its internal components. The pump continues to circulate water briefly to prevent the heat exchanger from getting too hot while the burner is off. It is a completely normal part of the boiler's operation and ensures the longevity of the system.
This status is naturally more frequent during winter when the heating is cycling on and off to maintain a constant indoor temperature.
DIY fix possible
Wait for 5 to 10 minutesObserve if the code disappears once the pump stops runningCheck that your room thermostat is turned down if you want the heating to stay off
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