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How to Replace a Thermostat

Why does my new thermostat not work? What to Check When Replacing a Thermostat.

Thermostat Problem
Electrical Question: Why does my new thermostat not work?

Thanks for the Help!

This electrical wiring question came from Dan, in Summerville, South Carolina.

Dave’s Reply:
Thanks for your electrical wiring question Dan.

Fix Wiring Problems when Replacing a Thermostat

Application: Thermostat for Controlling HVAC Heating Ventilation and Air Conditioning.
Skill Level: Beginner to Intermediate. This electrical wiring project is best performed by a Licensed Electrical Contractor.
Tools Required: Basic Electrical Hand Tools including a small screw driver and small wire strippers.
Estimated Time: Depends on personal level experience and ability to work with tools and the small thermostat wires.
Precaution: Identify the circuit for the furnace or heat pump, turn it OFF and Tag it with a Note before working with the thermostat wiring.
Troubleshooting and Testing: Most thermostats may be tested using a Volt/Ohm Meter. The thermostat battery should be tested and replaced as needed.
Notice: Make sure to get the exact replacement thermostat or or one that is a compatible replacement, such as a fully programmable thermostat.

What to Check if a New Thermostat is not Working Right

More about Replacing and Wiring a Thermostat

Troubleshooting  Thermostat Wiring Connections

Repair Residential Electrical Wiring
Troubleshooting

Troubleshooting and Repairing Electrical Wiring

Electrical Troubleshooting Methods used to solve the majority of the home electrical problems and wiring failures encountered.


» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.


  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.




Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.




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