BoilerFaultCodesYour boiler has lost the ability to accurately measure the water pressure, which prevents it from operating safely to heat your home.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Water pressure sensor fault
What causes this fault?
This fault occurs when the internal electronic sensor responsible for monitoring water levels becomes faulty or sends an incorrect signal to the main control board. The most common reason is an internal component failure within the sensor itself or a loose connection in the wiring that links the sensor to the boiler's computer.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like HJ-10 — 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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