Why does my central heating system keep losing pressure?
Your combi boiler can be losing pressure for a number of reasons. Pressure loss may be caused from a leak in the pressure relief valve, an issue in the expansion vessel, air in your system, or a leak in the heating pipework itself.Click to see full answer. Similarly, why does my heating system keep losing…
Your combi boiler can be losing pressure for a number of reasons. Pressure loss may be caused from a leak in the pressure relief valve, an issue in the expansion vessel, air in your system, or a leak in the heating pipework itself.Click to see full answer. Similarly, why does my heating system keep losing pressure?A boiler that keeps losing pressure is therefore always cause for concern. There are two main problems that typically cause a loss of pressure – water escaping somewhere in the system or a failure of the expansion valve and resulting damage to the pressure relief valve. what should boiler pressure be when heating is off? If your central heating system is turned off the boiler pressure should be between 1 and 1.5 bar. This means that the needle should still stay in the green area of the pressure gauge. Depending on the make of your boiler, the recommended optimal working pressure by most manufacturers is 1.3 bar. Beside this, is it normal for a boiler to lose pressure? 99% of the time, a boiler losing pressure is a leak. Unless the dial sits at 0 even when topped up (which could be a sign of a faulty pressure gauge), there’s a leak somewhere – even if you can’t see it. Whether you have an oil, system or combi boiler, pressure loss is usually directly related to a leak.How do I find a leak in my central heating system?Place a sheet of colored paper under the boiler – if any drops appear on the paper, it should make it very easy to find the leak in your central heating system. Follow the wet spots up along the central heating system and see if you can spot where the water is coming from.
