Avoid Boiler Breakdowns

Modern boilers are what is known as sealed systems, which means every now and then they will need replenishing with water. The central heating system needs to be filled up to an ideal pressure of between 1 and 1.5 bar. Filling the system involves keeping an eye on the pressure gauge and turning the handles to let water into the system. You will usually hear the water entering and the pressure can rise quite quickly so remember to switch off when the pressure reaches between 1 and 1.5 bar. If there is a leak on the system or you bleed your radiators the pressure will drop. Topping up after bleeding the radiators will remedy the problem, however if you have a leak it will need to be fixed otherwise the system will not hold pressure.