BoilerFaultCodesWhat the manual says
Manufacturer manualpressure transducer fault
From this model's manual
Verified against the Vokera Linea He installation & service manual, page 33.
What causes this fault?
This fault occurs when the boiler's internal computer receives an inconsistent or 'out-of-range' signal from one of its sensors. It is usually caused by a failing temperature sensor or a loose connection in the wiring harness that briefly interrupts the data flow. While the boiler may try to continue operating, it tracks these errors as a sign that a component is nearing the end of its life.
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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