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Can Home Thermostats Go Bad?

Can Home Thermostats Go Bad?

You may not give much thought to your home thermostat. But, this device controls your home’s temperature. Plus, it maintains your home’s comfort each day. Most residents use a home thermostat daily and adjust it based on their preferences. It’s important to know if home thermostats can be defective.

Thermostats Can Become Unresponsive

Your thermostat can become unresponsive as you attempt to set the home’s temperature. Try replacing the batteries, which may be causing the lack of power and operation. If new batteries don’t fix the issue, consider calling an HVAC technician. They can inspect the parts and diagnose the problem.

Temperature Inaccuracy

Thermostats can go bad when the set temperature doesn’t match the home’s temperature. This is normal if you have a zoning system, but the temperatures shouldn’t fluctuate on their own. This is a common sign that the thermostat may have reached the end of its lifespan.

There are times when a thermostat may not maintain the programmed settings over time. This makes the home increase or decrease in temperature.

The HVAC System Runs All The Time

The HVAC system may run all the time and stay on even if you try to turn the heating or cooling feature off. This issue may be due to frayed and damaged wires or a miscalibrated thermostat. An HVAC technician can test the thermostat to find the cause. We will let you know if you need a new thermostat.

In some cases, the HVAC system may also fail to turn on and no longer responds to the thermostat. If you adjust the thermostat temperature and you don’t feel a change, the device no longer works.

The HVAC System Short Cycles

Short cycling is a common problem when thermostats begin to have issues. The HVAC system can start to shut off too early and doesn’t perform a full cooling or heating cycle as it operates. You may notice that the home doesn’t feel as comfortable throughout the day or night. You may even adjust the thermostat many times but feel no change.


Contact us to learn more about how home thermostats can go bad to see if your device is at the end of its lifespan. One of our technicians can check your thermostat to see what the issue is. We will do any repairs or replace it if needed.

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