Matt H asked:


i have a leak on my central heating system, so i have turned off the central heating but my combi boiler wont fire up for hot water only. is there anything i can do until i get the leak fixed?

Phyllis

danicndivapmb*** asked:


Our central heating is working but is making a horrible banging noise as if our boiler is ready to blow up! Water is coming out of the overflow, the water seemed to be steaming, but it was a very foggy day so I’m not sure.

Please advise?

Glen

groovyreid asked:


We have 1 cold water tank that supplies the hot water cylinder. We had to replace the cylinder and now we dont have any water in the radiators, it wont fill. We have an indirect vented cylinder with a back boiler.
The old cylinder is over 15 years old - would it have had a non return valve in it and taken water from within the cylinder itself?
We cant figure out how the water fills into the central heating system.
Just found out that we have bought (on the advice of our local plumbing shop) a coiled cylinder & our old one was a primatic cylinder.

Zain

sam40 asked:


This boiler has been a pain for some time; it has needed repressurising every day but recently packed up altogether. Just had new pressure release valve fitted but now have heating working but the hot water is hot for a time and then becomes cold again and then hot again. Please help as this is driving me crazy.
New info: At low flow rates the water gets really hot and then the boiler cuts out- red light on constant…any more ideas with this? Thanks

Conner

zam asked:


Hi

To my understanding, a conventional boiler heats up all the water in the tank, even if it’s not being used/needed. You can schedule when the boiler comes on with your central heating program box.

A combi boiler only heats up water when it is needed. Therefore saving you money. A disadvantage of this is that you need to run the hot tap for a bit, before the boiler has chance to kick-in and heat the water up.

Question:

If a combi-boiler comes to life by the taps being used, what is the point in scheduling the hot water on the central heating system?

Thanks in advance

Sarah