BoilerFaultCodesYour boiler's main control panel is having trouble communicating with the internal display or remote controls.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No reception by the local user interface
What causes this fault?
This fault occurs when the main brain of the boiler loses its digital connection with the display panel or external controls. The most common reason is a loose or damaged internal wiring connection, though it can also be caused by an electrical component on one of the circuit boards wearing out.
DIY fix possible
Switch the boiler off at the fused spur power switchWait 60 secondsSwitch the power back on to see if the connection resets
Find a Gas Safe engineer
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A boiler cover plan would cover faults like F12 — no call-out fees, no surprises.
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