BoilerFaultCodesTechnical description
Water pressure sensor fault
What causes this fault?
This fault occurs when the boiler's internal computer loses communication with the sensor that monitors water pressure. The most common reason is that the sensor has developed an electrical internal short or the wiring connecting it to the main control board has become loose or damaged. Without an accurate pressure reading, the boiler shuts down to prevent itself from firing while potentially dry.
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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