Won't be able to get them back for while due to the current situation (it's not an emergency, just annoying), but guessing it must be something relatively easy to fix?
Hi - I've recently had HIVE installed by British GAS and now when I select Hot Water only the radiators also heat up. I've looked at the mid position valve and it's moving to M when HW only is called instead of W. When the HW is turned off it moves to H (CH is also off).
I've looked at the...