Can anyone change a thermostat?

As with many home repairs, changing a thermostat might seem like it requires a specialist. Whether adjusting your current aging thermostat has become a guessing game or you have a new smart thermostat, rest assured changing it is an easy process.

Let’s walk through the steps.

First, identify the type of heating and cooling controlled by the thermostat. Some people have unique systems which require a certain replacement. Examples include having separate heating and AC units, having designated high and low speeds, or having a direct current power source powering the thermostat.

To begin, turn off the power to your air conditioning and furnace units controlled by the thermostat. Do this by flipping the correct switch in your breaker box or by individually turning each of the units off at their source.

Check and make sure they are off by adjusting the temperature to a high or low temperature to see if anything turns on. From there, remove the face of the thermostat.

Make note of which wires will go where on your new thermostat. To accomplish this:

  • Draw the wire locations
  • Take a picture
  • Refer to the old or new thermostat manual

Next, begin disconnecting the wires. Depending on the design of the thermostat, this may require a tool, likely a screwdriver. With the wires disconnected, remove the mount of the old thermostat, which will also likely require a screwdriver.

Out with the old, in with the new (thermostat)

With the old thermostat out of the way, it’s time to put on the new mount. To save yourself time and trouble, make sure that you will be able to screw the new mount to the wall. This likely requires two drywall anchors being in the correct location. If it looks like it works, slide the wires through the hole in the mount.

Connect the wires to the new mount. Refer to the method you used from earlier for this, otherwise the letters on the mount correspond to the color of the wire. Newer thermostats no longer use screws, so refer the manual to confirm the wires are securely in place. Once wired, screw the mount to the wall.

Now attach your new thermostat face and turn the power back on. Depending on your thermostat, you can now configure it and adjust the settings to your preference.

Still need assistance or advice? Call us today at 408-295-2182