BoilerFaultCodesTechnical description
Water transducer – check system water pressure
What causes this fault?
This fault occurs when the boiler's internal sensor detects that there isn't enough water pressure to safely heat your home, or if the sensor itself has developed an electrical fault. The most common reason is a gradual loss of water through a small leak or from bleeding your radiators, which drops the pressure below the required operational limit. When this happens, the boiler shuts down as a safety precaution to prevent the internal components from overheating.
This fault is slightly more common in autumn when homeowners turn their heating back on after the summer, as the change in temperature can highlight pressure drops or minor leaks that developed while the system was idle.
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.