My thermostat is working fine and has connected fine. But. Although the
thermostat says the boiler is off. It’s not. I can’t seem to get it turn
the boiler of at all. I’ve had the thermostat for 1 year. This is a new
problem
I think the issue is a faulty diverter valve. Theres an electrical
switch that turns the boiler on and off inside the box. I think it’s
stuck on on. Probably need to replace the valve