Recent content by fred48

I'd ordered my new diverter valve last year as my Combi 100 was starting to display some problems with the CH not coming on for long periods (an hour or more) occasionally after the hot water had been run. It seemed to cure itself for a wee while so it wasn't until yesterday, when I had a bit...

Best of Luck - I hope all goes well. Might go have a Pot o' Tea now!

Try www.keeptheheaton.com - I managed to get a diverter valve from them last year for about £80. That was for a Potterton Combi 100: the 80 might just have the same part - not sure. Hang on a mo.......... Yes, just checked on www.mjtcontrols.co.uk and I see that the 80 and the 100 share the...

I rather suspect that this might be due to a sticking diverter valve - I have had this problem with a Potterton Combi 100. It seems you can only purchase the entire valve assembly at around £80 though I think it is usually just the wax thermostat that packs in.