BoilerFaultCodesYour boiler's internal computer has encountered a critical 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: Boiler electronics faulty
What causes this fault?
This fault occurs when the boiler's main control board suffers a hardware failure and stops sending data to other internal components. It is often caused by a sudden electrical surge or an internal short circuit that has damaged the delicate microchips on the circuit board. Without these clear signals, the boiler cannot safely coordinate the ignition and heating process.
This fault is more common following summer storms, as power surges from lightning strikes or grid fluctuations can damage the boiler's sensitive electronic circuits.
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 238 — no call-out fees, no surprises.
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Could it be time for a new boiler?
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