BoilerFaultCodesYour boiler is displaying a code simply because the reset button was held down for too long or pressed accidentally.
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: Reset button pressed by mistake.
What causes this fault?
This code appears when the reset button has been held down for more than 15 seconds, which confuses the boiler's control board. It is usually triggered by accident when a user is trying to clear a previous fault or if the button becomes physically stuck. Because the button was pressed for too long, the boiler enters this state as a safety precaution until the signal is cleared.
DIY fix possible
Press the reset button once more, firmly but briefly (less than one second).Wait for the boiler to complete its startup sequence.If the code persists, switch the power to the boiler off and back on at the fused spur switch.
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