BoilerFaultCodesYour boiler is temporarily running the internal pump or fan to cool itself down after heating your home or water.
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 / fan overrun
What causes this fault?
This occurs when the boiler's internal sensors detect that the heat exchanger is still very hot after the burner has turned off. The boiler keeps the pump or fan running for a short period to move this residual heat away from the internal components and prevent overheating. It is a normal safety function rather than a breakdown.
DIY fix possible
Wait for the process to finish, as this is a normal operating function.Ensure your radiator valves are open to allow heat to dissipate.If the code never disappears, try resetting the boiler once.
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