Hi Eric
Thanks for your reply. The orange wire is going live to 240v when the valve first moves over but then doesn’t stay live. I have replaced the entire valve and also the head of the valve as I first thought the new valve was faulty.
I tried what I said in the post above and linked the...
Apologies if this has been discussed before.
So we have had an indirect unvented cylinder (Joule Invacyl) fitted which is heated by a Worcester Greenstar Ri boiler in a Y plan configuration. We have had a hive dual channel installed a week after the cylinder.
The heating stopped working...