BoilerFaultCodesYour boiler has stopped working because it cannot communicate with the sensor that monitors the temperature of your hot water cylinder.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Burner does not start. Cylinder sensor fault (short circuit or lead break).
What causes this fault?
This fault occurs when the boiler loses its electrical connection to the probe that monitors your hot water tank’s temperature. The most common reason is that the internal wiring has become damaged, or the sensor itself has suffered an electrical failure, meaning the boiler can no longer tell if your water is hot or cold. As a safety precaution, the system stops the burner from firing to prevent the water from overheating.
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 E14 — no call-out fees, no surprises.
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