BoilerFaultCodesYour boiler has detected an internal electrical connection issue that is preventing it from running safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Check wirings
What causes this fault?
This fault occurs when the boiler's central brain loses communication with its internal sensors or components due to a break in the electrical path. It is most commonly caused by loose plugs, damaged wiring, or moisture causing a short circuit on the control board. Without a solid electrical connection, the boiler cannot verify that it is safe to fire up, so it shuts down as a precaution.
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 2x — no call-out fees, no surprises.
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