December 10, 2017
If you have a combi boiler or a sealed heating system (usually accompanied by a pressure gauge on the boiler or somewhere nearby), then the pressure of the system is important.
It’s typically set to 1 bar (when the system is cold), and may increase slightly when the heating is on.
If the pressure falls below, approximately 0.5 bar, the boiler may not operate, and the pressure will need topping up. This is done via the filling loop – usually a flexible braided pipe.
If this happens regularly and often, then it may indicate a leak somewhere in the system.
So, if your boiler isn’t working, check the pressure first, it may just need topping up, and it could save you a call out…