How to Test a Thermostat

Diagram of an electronic thermostat’s base including colored wires and terminal screws.

Does it seem like your thermostat isn’t controlling your furnace or AC properly? If your home’s heating and cooling equipment isn’t working right, maybe the thermostat is the problem. In this article, we’ll show you how to test your thermostat and, if necessary, bypass it to get your equipment working. Here’s how to test your […]