BoilerFaultCodesTechnical description
Fault: Water press. sensor (signal too weak) - Water pressure sensor reports that the water pressure is too low
What causes this fault?
This fault occurs when the boiler's internal computer loses communication with the water pressure sensor, or the sensor itself has failed mechanically. The most common reason is that the sensor has become blocked with system debris or has suffered an electrical failure, meaning it can no longer confirm there is enough water to safely heat the home.
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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