Lexie is a former Staff Writer at Forbes Home and has over 6 ... wire, complex wiring or any new installation may take six to eight hours or even longer. What happens if you don't replace the ...

Take multiple photos if necessary, and if wires don’t have clear separate colors, you will need to label them with little tags before you move on. Fortunately, not all thermostat wiring is as ...

Our walkthrough on smart thermostat installation will give you the details, important checks to make and how to make steps easier.

3. Now that the faceplate is gone, you should be able to see the thermostat wiring. Grab your phone and get a picture of the wiring for future reference. 4. Disconnect the wires from the ...

For the wired thermostats, we also note whether each comes with a wiring adapter, which allows you to install the thermostat even if you have an older HVAC system that’s missing a C-wire.

With the wiring in place, you should be able to snap the faceplate of your new thermostat onto the backplate. If it doesn’t ...

With the wiring in place, you should be able to snap the faceplate of your new thermostat onto the backplate. If it doesn’t attach easily, don’t force it; wires could be in the way.