BoilerFaultCodesYour boiler has locked itself out because the reset button has been pressed too many times in a short period.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Maximum number of resets reached. (Over 5 reset attempts have been reached within 15 minutes.)
What causes this fault?
This fault occurs when the boiler's safety software detects too many manual reset attempts in a 15-minute window and enters a protective lockout. It is usually triggered because an underlying issue caused the boiler to fail initially, leading the user to repeatedly press the reset button. The boiler essentially stops responding to prevent potential damage or further safety risks from constant restarting.
DIY fix possible
Turn the boiler power off at the fused spur switch (the wall switch).Wait for at least 15 to 30 minutes to allow the internal timer to clear.Turn the power back on and see if the fault has cleared, but do not press reset again if a different fault code appears.
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