BoilerFaultCodesYour boiler has likely detected a fault with its internal memory or circuit board, causing it to stop heating your home as a safety precaution.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: N/A
What causes this fault?
This fault occurs when the boiler's main control centre suffers a communication failure or data corruption within its internal memory chip. It is usually caused by a physical component failure on the printed circuit board or an electrical surge that has damaged the boiler's ability to process instructions correctly.
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 8 — no call-out fees, no surprises.
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