BoilerFaultCodesYour boiler’s main control board has experienced an internal computer error and can no longer communicate with the rest of the system.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Internal fault (PCB)
What causes this fault?
This fault occurs when the boiler's internal computer brain suffers a communication breakdown or a component failure on the circuitry. It is usually caused by a hardware malfunction within the control board itself or a loose electrical connection that prevents the board from sending instructions to the burner.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like E44 — no call-out fees, no surprises.
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