BoilerFaultCodesYour boiler is simply cooling itself down after finishing a heating cycle and does not require any action.
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. 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
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like S.07 — no call-out fees, no surprises.
Affiliate links — we may earn a commission at no extra cost to you.