On paper, a smart thermostat sounds like a great deal-- offering potential savings while making home heating and cooling easier to manage through AI and remote sensors. In practice, a worry frequently ...

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.

Getting a new smart thermostat? We understand if you don’t want to pay extra to have it professionally installed when you can do it yourself. Installing a smart thermostat requires some basic work ...