What does it mean when your boiler has no hot water?
If the heating is on, then there’s a good chance the fault lies with a valve that redirects the cycled water between the central heating and the hot water as it’s needed. It’s called a divertor valve, and it might have got stuck.
Why does my central heating work but no hot water?
A relatively common fault with boilers sees the central heating work with no hot water. In some cases – such as with broken diverter valves – the hot water will only work when the central heating is fired up, whereas in other cases, the hot water will not work at all.
Is it safe to use hot water with central heating?
Water – Working with hot water and hot pipes comes with a risk of scalding. The water in your central heating circuit is dirty, and contains anti-corrosion and biocidal chemicals.
What to do if there is no hot water in Your House?
Close the hot tap, and the boiler will go back to heating your home. A fault diverter valve is very likely if you have a combi boiler and central heating but no hot water. This will have to be replaced by a qualified engineer.
If the heating is on, then there’s a good chance the fault lies with a valve that redirects the cycled water between the central heating and the hot water as it’s needed. It’s called a divertor valve, and it might have got stuck.
A relatively common fault with boilers sees the central heating work with no hot water. In some cases – such as with broken diverter valves – the hot water will only work when the central heating is fired up, whereas in other cases, the hot water will not work at all.
What happens if your central heating is leaking?
Check for leaks. If your central heating is leaking, this will lead to a drop in pressure, along with a loss of water. Besides the problems with your hot water, this may also lead to rot and structural problems if left untreated, so it is worth checking to be sure.
What should water pressure be in central heating system?
Water pressure inside the boiler and central heating system should be in the range of 1–1.5 bar. If it has dropped below or risen above this range, it might switch off for safety reasons. If it’s too low, put some more water in the system with the filling loop.
