BoilerFaultCodesTechnical description
Flow temperature sensor error – try resetting the boiler
What causes this fault?
This fault occurs when the boiler's internal computer stops receiving a reliable signal from the sensor that monitors the heat of the water leaving the unit. The most common reason is that the sensor has physically failed or developed a short circuit, but it can also be caused by loose or damaged wiring between the sensor and the main control board.
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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