Thank you so much for your reply - this is the thermostat https://www.manualslib.com/manual/1396366/British-Gas-Pt-Plus-22089.html
I’m not sure what the one upstairs is but it’s the one that came with the house - no problems at all with that one, it, and the radiators on the middle and top...
Hello - first time poster here and wondering if anyone can help?
Baxi combi boiler.
We have a three storey home; heating on top and middle floors is controlled by a thermostat located on the top floor, ground floor heating is controlled by a thermostat on the ground floor.
British Gas...