BoilerFaultCodesYour boiler has lost its internal settings and needs to be restarted to recalibrate itself.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Missing calibration – try resetting the boiler
What causes this fault?
This fault occurs when the boiler's internal computer loses the critical data it needs to manage the flow of gas and air safely. The most common reason is a momentary power surge or electronic glitch that causes the control board to 'forget' its saved configuration settings.
DIY fix possible
Locate the reset button on the boiler control panelPress and hold the reset button for at least 2 secondsWait up to 10 minutes for the boiler to complete its automatic calibration cycle
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like E1-67 — no call-out fees, no surprises.
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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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