Hi,
I have the above boiler which seems to have developed an 'issue' with heating the hot water.
When the boiler is on CH and HW at the same time, or just CH, there is no problem. However, when set to just HW the return to the boiler is very hot, and the boiler stat trips and the boiler turns off. This is with the cylinder stat set to 55C.
Further, the boiler keeps trying to light once this has happened, for maybe 5 to 10 times, but obviously fails because the stat has tripped. The boiler is not locked out and after these re-light attempts goes back to normal and waits for the temp to cool then re-lights.
I don't remember this happening before the last couple of weeks, and I'm not sure what the issue could be. If any of you can give me some fault-finding advice it would be much appreciated.
Thanks in advance,
Nick.
I have the above boiler which seems to have developed an 'issue' with heating the hot water.
When the boiler is on CH and HW at the same time, or just CH, there is no problem. However, when set to just HW the return to the boiler is very hot, and the boiler stat trips and the boiler turns off. This is with the cylinder stat set to 55C.
Further, the boiler keeps trying to light once this has happened, for maybe 5 to 10 times, but obviously fails because the stat has tripped. The boiler is not locked out and after these re-light attempts goes back to normal and waits for the temp to cool then re-lights.
I don't remember this happening before the last couple of weeks, and I'm not sure what the issue could be. If any of you can give me some fault-finding advice it would be much appreciated.
Thanks in advance,
Nick.