How To Know If A Thermostat Is Not Working?

How To Know If A Thermostat Is Not Working?

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How To Know If A Thermostat Is Not Working?

Climate Control Company wants you to have the most efficient and technologically advanced heating and cooling system possible in your Glenwood Springs, Aspen, or Vail, CO home. It’s the best way to keep the house comfortable but it won’t happen if the little box on the wall isn’t working correctly. Sometimes it’s hard to remember the thermostat is the boss of the system. It determines if the house is too warm or too cold and tells the furnace or air conditioner when to turn on and when to shut off. Because it’s so important the thermostat should be a part of regular HVAC maintenance.


This isn’t always an easy question to answer. As reliable as modern HVAC equipment is, there are many components that can fail. With that said, let’s take a closer look at ways to determine if the thermostat is the culprit.

  • Thermostat display is dark—The first thing to check is whether the thermostat has batteries. If it does, replace them and see if that fixes the problem. Wiring problems can also cause a display to go dark.
  • Thermostat doesn’t seem to communicate with system—Adjust the temperature setting by at least five degrees then wait a few minutes. If the heating or cooling system doesn’t start running there is a communication problem. Call in professional help to determine why it’s happening.
  • Temperature doesn’t match setting—If the thermostat still seems to be turning the system on and off but at the wrong temperature, then the system is no longer correctly calibrated.
  • System is continually turning on & off—The typical heating or cooling cycle lasts about 15 minutes. If the system runs for just a couple of minutes, shuts off, then starts again a couple minutes later it’s a problem called short cycling. While there can be other causes, the thermostat could be at fault. This problem should be corrected quickly as it is hard on the equipment.


Today’s programmable and smart thermostats are wonderful devices, but truthfully some people are not comfortable with digital technology. Many times, Climate Control Company finds thermostats in Glenwood Springs, Aspen, and Vail, CO homes that are simply set incorrectly. If you are having trouble, get out the owner’s manual and carefully go through each step to make sure it’s programmed properly. If you are confused and just not sure how to do it correctly, don’t be afraid to ask for help. During seasonal maintenance, our technicians will always run a diagnostic check on the thermostat. Call and make your appointment now. To learn more about the services we offer be sure to like us on Facebook and follow us on Twitter.