BoilerFaultCodesYour boiler has detected a problem with the internal temperature sensor that monitors the water leaving the unit, causing the system to shut down for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: NTC flow sensor error
What causes this fault?
This fault occurs when the boiler's internal computer receives an incorrect or missing signal from the sensor that monitors the heat of the water leaving the unit. The most common reason is that the sensor itself has developed an electrical fault or has become corroded, although loose or damaged wiring between the sensor and the main control board can also be the culprit.
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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