BoilerFaultCodesYour boiler is having trouble communicating with the control panel or your thermostat, meaning it cannot receive your instructions to turn on.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: User interface or distant control panel fault
What causes this fault?
This fault occurs when the main control board inside the boiler loses its electronic connection with the display panel or your room thermostat. The most common reason is a loose internal wiring connection or a failure in the circuit board that processes your commands, preventing the boiler from knowing when to fire up.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like 12 — no call-out fees, no surprises.
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