ALL 02 Your boiler has stopped working because the water pressure inside the heating system has dropped too low.
Your boiler has stopped working because the water pressure inside the heating system has dropped too low.
What to check first
- Locate the filling loop (a flexible metal hose) connected to the underside of the boiler.
- Open the valves on the filling loop slowly to let water into the system.
- Watch the pressure gauge on the front of the boiler until the needle reaches 1.5 bar, then securely close the valves.
Parts commonly replaced
- Filling loop
- Pressure relief valve
- Pressure sensor