BoilerFaultCodesTechnical description
Flow sensor short circuit – check connections to flow sensor
What causes this fault?
This fault occurs when the boiler's internal computer receives an incorrect electrical signal from the sensor that monitors hot water leaving the unit. The most common reason is that the sensor has suffered an internal electrical failure or the delicate wiring connecting it to the main control board has become damaged or loose.
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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