BoilerFaultCodes flashing pressure value Your boiler has detected that there is too much water inside the system, which puts extra stress on the internal components.
Your boiler has detected that there is too much water inside the system, which puts extra stress on the internal components.
What to check first
- Locate the filling loop (braided hose) and ensure both valves are tightly closed.
- Find a radiator and use a bleed key to release a small amount of water into a bowl until the pressure reading drops to 1.5 bar.
- Restart the boiler to see if the flashing warning has cleared.
Parts commonly replaced
- Filling loop valve
- Expansion vessel
- Pressure relief valve