BoilerFaultCodesYour boiler has detected a problem with the sensor that monitors water pressure, meaning it cannot confirm if there is enough water to run safely.
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 error (short circuit or open circuit)
What causes this fault?
This fault occurs when the boiler's internal computer loses communication with the sensor that monitors water levels. The most common reason is that the sensor's internal electrical components have failed or the wiring connecting it to the main control board has become loose or damaged. Because the boiler cannot verify that it has enough water to operate safely without this sensor, it shuts down to prevent overheating.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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