BoilerFaultCodesTechnical description
Water pressure sensor signal in the wrong range, it is too low
What causes this fault?
This fault occurs when the boiler's internal computer receives an electrical signal from the water pressure sensor that is outside of its expected operating range. The most common reason is a physical failure of the sensor itself, though it can also be caused by loose or damaged wiring that prevents the sensor from communicating correctly. As a safety precaution, the boiler stops running because it cannot confirm there is enough water to operate safely.
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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