If you swapped the suspect 2-wire non-programmable with the known good 2-wire programmable from the bathroom and it works properly, there is no other conclusion. The 2-wire non-programmable is broken.

Unlock to see our ratings and compare products side by side The ease of manually controlling the thermostat's temperature set-point, heating/cooling schedule, home/away and vacation features - when ...

Nearly all thermostats operate solely based on the temperature reading of the room they're in. That can make other rooms of your house controlled by the same thermostat uncomfortable if, say, the ...

Environmental control company Emerson has added to its Sensi thermostat line with a new pair of HomeKit-compatible devices. On Monday, Emerson announced that its new Sensi Touch Wi-Fi Thermostat and ...