How do I check the pressure?
Loss of water pressure can cause your central heating to stop working. Check the water pressure indicator on the front of your boiler, it should read between one and two bars of atmospheric pressure. Below one, indicates that your boiler pressure is too low.
How do I top up the pressure?
To top up your system and increase the pressure:
Make sure the boiler is switched off and the system is cool.
The hose will have a valve at both ends – make sure both ends of the hose are securely attached to both valves.
The valves can be opened either by tap handles, or by using a flat headed screwdriver.
Keep an eye on the pressure gauge until it reaches 1.5bar, then close of both valves, one after the other.