No Power to Your Thermostat? Possible Reasons and Easy Fixes

If you are wondering why your thermostat is not getting power, you’ve come to the right place. Klondike Air has over 35 years of experience assisting customers in Orange County with all of their HVAC needs.

In this article, we will be going over possible reasons why you have no power to thermostat, quick fixes, and when it is time to bring in the professionals.

The Importance of a Thermostat in HVAC Systems

Your HVAC system keeps your home cool in the summer and warm in the winter in Orange County. Your HVAC unit is made up of multiple different systems connected and controlled by your thermostat. If your thermostat is not getting power, you won’t be able to turn your AC or heat on or off.

Reasons For No Power to Thermostat

There are a lot of different reasons why your thermostat is not getting power. We’ll start with the simplest explanation to help you troubleshoot the issue.

Double-Check That It Is Turned On

Older thermostats might need to be turned off and on again to get the system to actually start. Smart thermostats are really easy to turn off by brushing up against the thermostat screen. If the screen has any icons or lights but still won’t turn on, your thermostat isn’t the problem.

Replace The Batteries

Older thermostats are battery-powered, so it is just as simple as looking up the make and model of your thermostat to find the instructions for how to change the batteries.

Reset The Circuit Breaker

Before you call the professionals, check your breaker panel to see if the circuit got flipped or if a fuse was blown.

Clean The Thermostat

Sometimes it is as simple as dirt, dust, or grime preventing the thermostat from working. Wipe down the thermostat with a lint-free rag and remove the cover to clean the inside. It is a good idea to turn off the power to your thermostat before cleaning it. Do not use a cleaner or water to clean your thermostat.

Inspect For Wiring Issues

Remove the cover to check and make sure there are no loose wires. If you see any terminal screws that are detached or corroded, that could be your problem. Pests such as rodents can damage thermostat wiring in the walls as well.

Just Plain Old

Most thermostats are mechanical, and components wear out over time. They will become less accurate over the years and not work as well as you are used to. This is especially true if you have an older home. If your old thermostat has stopped working, it might be time for an upgrade to a smart thermostat.

Bad Placement

If your thermostat is in a colder part of your home, such as a garage or by a window that gets direct sunlight, the temperature sensor inside your thermostat may get the wrong reading.

Call For Professional Help

If you have completed all of the troubleshooting steps in this article, and your thermostat is still not getting power, it’s time to call Klondike Air. Our experienced technicians are ready to help you fix the reason for no power to thermostat.

Thermostat Not Getting Power Troubleshooting Checklist

To summarize, when you are troubleshooting the reasons for no power to thermostat, you should:

• Double-check that it is turned on
• Replace the batteries
• Reset the circuit breaker
• Clean thermostat
• Inspect for wiring issues
• Check the age of the thermostat
• Check placement
• And if all else fails, call professional help!

No Power to Thermostat After Replacing

If you have replaced your thermostat and it is still not turning on, follow our checklist to troubleshoot the issue. It might be as simple as a circuit breaker or a loose wire.

If your thermostat is battery-powered, you should confirm you have the right batteries for your make and model.

If you cannot find the issue, call Klondike Air to fix your thermostat. You do not want to cause damage to your wiring or, worse your HVAC system.

Don’t Sweat; Call Klondike Air

Klondike Air offers dependable HVAC services in Orange County. Our intense summers make AC a necessity. Your thermostat will be up and running in no time, thanks to our expert technicians. We are obsessed with customer satisfaction; just see what some of our happy customers have to say about our services:

Years ago, Klondike demo’d my old asbestos ducting, then installed new ducting and new AC and Furnace units. They’ve been servicing twice per year ever since. They do a great job and are responsive. I’d highly recommend them.
Christopher Reed
Excellent service. They are always on time and very courteous and knowledgeable.
Claudia Fabiana R.
I use this business for both my home and work. They are very professional, helpful, and reasonable. I never feel pressured into any service. They’ve done repair work and new installations. I highly recommend them.
Daniel Pietenpol

You will always have a working air conditioner and a functioning thermostat if you subscribe to our Gold Club. For just $189 a year, our professionals will carry out the routine maintenance needed to guarantee you’re always taken care of!

Call Klondike Air at (714) 979-2070 to schedule your appointment today.

FAQs

Why is there no power to the thermostat after replacing it?

The thermostat may not be installed properly. There could be a loose wire, a tripped breaker, or you could have used the wrong batteries. If you are unable to get your thermostat to power on, you should contact the professionals to prevent injury or damage to your wiring.

How can I determine if the problem is with the circuit breaker?

You should locate your circuit breaker panel. Find the breaker for your HVAC system and confirm it is in the right position. If it is on, but you still aren’t getting power, you can try turning it off and on again.

If the batteries in my thermostat are dead, what should I do?

Replace the batteries with new ones. Check your owner’s manual to confirm the right type of batteries for your thermostat. We recommend rechargeable batteries with a longer lifespan.

Is it possible that bad wiring is the cause of the thermostat not working?

Yes, bad wiring can cause problems with your thermostat. Bad wiring can be caused by rodents, old wiring, or even bad installation.

After troubleshooting, if my thermostat still doesn’t work, when should I call a professional?

You should call a professional right away if you are unable to get your AC to turn on in the hot summer weather in Orange County. Give Klondike Air a call, and we’ll be happy to send out one of our knowledgeable technicians to fix the problem.