Yes, TRVs on rads. All set to MAX. They have NOT been touched since the repair was carried out, and prior to the job being done, the rads were all hot and didn't cool down.
Further to my last post, turns out Tony was bang on. So engineer replaced the old diverter valve with brand new one. He also fitted a new pump which was needed too.
So......all sorted now with lovely piping hot water once again. However.......
....this is something I've noticed since the...
This is a bizarre one (in my eyes, anyway).
Here goes:-
SIME Friendly Boiler. Central Heating is absolutely fine. It's the DHW that has the trouble. So long as the boiler is on, I get DHW when I turn on the hot tap in the kitchen...........and it's consistently hot too. Turn off the boiler...