Blimey just saved the day , I’ve just returned from holiday to find the house like a sauna , the system was calling for heat even after switching off on the controller and the remote thermostat . The problem was that the heating valve had stuck on ! Thanks again

Good work. Gave me an insight into my boiler fault. Peace be unto you.

Smashed and Great video mate

Hi, did you manage to sort your issue in the end? We're having the same problem

Motorised valve, change the valve will sort the problem ,had it a few times on the ri

Will you DIY change the valve. I managed to change my motorised valve. Just plan what you need to do and take your time.

I have a auto working boiler i won’t need to set a timer and I have a yearly boiler check and the one this year we decided to install a carbon monoxide detector we had the boiler for 10+ years

I have this problem with mine Dick, during the summer there is only hot water on, when it comes to winter I find the valve is stuck, like yours. I wiggle it like you did but it takes a few days of use with both HW and CH in use before it truly starts to work as it should. Mind you this coming winter I possibly won't have the heating on much!

How much would it cost to have the valve replaced?

WD 40 works every time in this situation