BoilerFaultCodesYour boiler is currently running its pump to safely cool down the internal components after a period of activity.
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 is operating.
What causes this fault?
The 'P' code appears when the boiler's internal thermostat detects that the heat exchanger is still hot after the burner has turned off. The boiler keeps the pump running to circulate water and move this residual heat away from the internal components to prevent damage. This is a standard safety function rather than a failure, often triggered after a long period of heating or hot water use.
DIY fix possible
Wait for 5 to 10 minutes to allow the cooling cycle to finishEnsure your radiator valves are open to allow water to circulateCheck if the message clears naturally once the boiler reaches a safe temperature
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A boiler cover plan would cover faults like P — no call-out fees, no surprises.
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