Hi , I've got a ideal standard boiler, separate hot water cylinder, controller in garage and digital room stat.
When controller is set on constant, it will just keep heating the house and not listen to the requirements of the room stat, when controller is set on twice the heating works fine and can be controlled by the room stat.
If the hot water is on constant and heating on twice this will also ignore the room stat and just keeping heating the house
I've tried replacing the 3 port valve, room stat, controller, replaced stat on hot water cylinder , disconnected frost stat to see if its faulty.
I've balanced the rads, flushed, and inhibited the system.
Pleeeeeeeease I need help as the gas bills are just getting ridicules now? Next step is a boiler engineer?
When controller is set on constant, it will just keep heating the house and not listen to the requirements of the room stat, when controller is set on twice the heating works fine and can be controlled by the room stat.
If the hot water is on constant and heating on twice this will also ignore the room stat and just keeping heating the house
I've tried replacing the 3 port valve, room stat, controller, replaced stat on hot water cylinder , disconnected frost stat to see if its faulty.
I've balanced the rads, flushed, and inhibited the system.
Pleeeeeeeease I need help as the gas bills are just getting ridicules now? Next step is a boiler engineer?