BoilerFaultCodesYour boiler has stopped working because it cannot communicate with the sensor that monitors the temperature of the water leaving the unit.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Flow temperature sensor interruption
What causes this fault?
This fault occurs when the boiler's main control board loses the electrical signal from the sensor that monitors the heat of the water leaving the unit. It is usually caused by the sensor itself failing due to age, or damage to the internal wiring that prevents information from reaching the central computer.
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 F.00 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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