BoilerFaultCodesYour boiler has encountered a computer processing error or the reset button is stuck, meaning the system cannot start its normal operations.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Internal fault or reset button blocked
What causes this fault?
This fault occurs when the boiler's internal computer experiences a communication failure or the reset button becomes physically jammed. It usually happens because the electronic control board can no longer process data correctly, or it mistakenly thinks a user is permanently holding down the reset button.
DIY fix possible
Check if the reset button is physically stuck or jammed in the control panelGently press and release the reset button to see if it springs backTurn the boiler power off at the fused spur switch, wait 30 seconds, and turn it back on
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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