BoilerFaultCodesYour boiler's internal computer is receiving a confusing signal regarding the flame, preventing the system from starting for safety reasons.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Electronics flame signal error
What causes this fault?
This fault occurs when the boiler's main control board detects a flame signal at the wrong time, such as before the gas has actually been ignited. The most common reason is an internal hardware failure within the printed circuit board, but it can also be caused by a worn ignition electrode sending 'ghost' readings to the system.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like F.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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