BoilerFaultCodesYour boiler has lost track of the system's water pressure because a sensing part has stopped working properly.
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 boiler's internal computer can no longer read how much water is inside the system, causing it to shut down for safety. The most common reason is that the pressure sensor has become blocked with system debris or its electronic internal components have simply failed over time.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like 09 — no call-out fees, no surprises.
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Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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