A thermostat senses the ambient temperature and sends an electrical signal to the appropriate system causing it to cycle. Use a 14 inch nut driver or flathead screwdriver to remove the upper and lower thermostat access panels.

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Now pull the wires from the wall through holes in the back of the new plate and screw the plate into the wall.

How to replace a thermostat. If the wires want to pull back into the wall tape them down with masking tape to hold them in place. You can do this by locating your thermostats circuit breaker and switching it to the off position. Once the new thermostat is on the wall turn power back on from the breaker.

Take photo of the wiring before you start or write it down Pull thermostat wires off then loosen the mounting nut or clip holding the thermostat in place and slide it out of the evaporator tube. Underneath it youll see the wall plate and thermostat wires. Then replace the bolts.

Note which wires are connected to which terminal screws then disconnect the wires of your old thermostat. Thermostats may be tied to the furnace air conditioning system or both. There are also smart thermostats that can be controlled remotely over Wi-Fi.

Lets get started and bring your thermostat into the 21st century. Place the mounting plate for the new thermostat against the wall in the same spot as the old one. But if you cant find one turn off the power at your electric panel or fuse box.

Remove the interior plastic covers over the thermostat. Follow instructions to attach the base of your new thermostat to the wall. Ill admit replacing a thermostat with all the wires and the breakers and the electric doo-hickeys kind of intimidated a DIY-noob like myself.

Thermostat failure can sometimes be tricky to diagnose on your own because you could also suspect problems with your heating and air conditioning systems. Tighten the screws securely. How To Easily Install And Replace A Honeywell ThermostatBuy Your New Thermostat Here - httpsamznto31bAFabHere is a list of tools you may needSmall Flat.

A programmable thermostat lets you customize the heating and cooling of your home based on your needs ensuring the heat and air conditioning arent running when you dont need them. Program the thermostat according to the manufacturers instructions. Make sure to place the spring-side down.

Fold back the insulation over the thermostat. How to replace an old thermostat. Scrape off any pieces of gasket that may be stuck but be sure not to let these pieces fall into the hole.

Mount the control unit to the base using the screws included with your thermostat. For more advice from our General Contractor reviewer including tips on how to replace the thermostat in your car keep reading. Make sure it is square to the wall and adjust the unit for leveling before tightening the mounting screws.

Replace the panel cover and plug in the refrigerator. Using a level it may be built in to the thermostat itself mark the holes for new screws and then pre-drill into the wall using the drill and a 18 bit or recommended size. Install the replacement wall plate and hook the new thermostat up to the old wires.

We walk you through the steps explaining why and how of each step. Usually theres an onoff switch on the unit. Some thermostats create schedules and.

Secure the new thermostat to the evaporator tube then attach the wires to the terminals. Use the screwdriver to attach the base of the thermostat to the wall. Loosen the terminal screws with a screwdriver and gently unhook the wires from the screws.

Learn how to replace a thermostat to save money on your heating and cooling billsTheHomeDepot HomeImprovement DIYSUBSCRIBE to The Home Depot. Restore power to your heatingcooling system then press the reset button to clear the program memory. My dream of becoming George Jetson will be one step closer.

7 Drop in and secure the new thermostat. First things first turn off the power to your heating cooling system. The most obvious reason to replace a thermostat is because its broken.

This video is about How To Replace A Thermostat on a home central air conditioning system. You can remove the cover of an old Honeywell home thermostat by hand. With the new device I can change the temp in my house from my phone and Ill get updates when I need to replace the filter.

Use tape to secure the insulation out of the way. You can set your system for one temperature when youre at home and another when youre away. If you dont have DIY experience with thermostats and HVAC systems you may need the assistance of a licensed HVAC.

Theres a gasket around the hole where the thermostat was located take that off too.