BoilerFaultCodesTechnical description
Fault: Electronics/sensor - Electronics, safety-relevant sensor or cable defective
What causes this fault?
This fault occurs when the boiler's control center receives conflicting temperature readings that don't match up, triggering an emergency safety shutdown. The most common reason is a physical short circuit in the internal wiring or a specific electronic component failing due to moisture or age. It essentially means the boiler can no longer trust its own sensors to monitor heat levels safely.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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