Hoping someone on here can stop me going bonkers. I’ve got a wireless thermostat controlling my boiler and periodically it develops a mind of its own. Although the thermostat doesn’t call for heat, the boiler fires anyway and runs the central heating, sometimes for hours at a time. The house is actually uncomfortably warm at this time of year and no amount of manual overrides stops the boiler from firing, then just as suddenly the boiler will stop. Under the boiler itself there is a control box with 2 lights. As I understand it, the red light indicates a link to the thermostat and the green light comes on telling the boiler to fire, even though the thermostat is not indicating demand for heat?
It’s driving me nuts, any ideas?
Regards
A