Replacing vs. Repairing: What to do with a Malfunctioning Thermostat


Replacing vs. Repairing: What to do with a Malfunctioning Thermostat

Your thermostat is the brain of your HVAC system, and it plays a critical role in regulating the temperature of your home throughout the year. Maintaining your thermostat is essential for your system’s health and longevity. However, even with proper care and maintenance, thermostats may fail at some point. When this happens, you are faced with a difficult decision: should you repair or replace your malfunctioning thermostat?

Common Issues with a Malfunctioning Thermostat

Thermostat problems are a common issue experienced by many homeowners. If you’re facing any of the following issues, your thermostat is likely the root cause:
  • No Power– It could be that the thermostat isn’t connected correctly to your HVAC system, or there might be a problem with the wiring. This can cause the thermostat to shut down entirely.


  • Heater or AC Won’t Turn Off– This is a common issue that homeowners encounter. You may notice your HVAC system running continuously or cycling on and off without turning off, resulting in high energy bills.


  • Thermostat Doesn’t Match Room Temperature- If the temperature reading on your thermostat doesn’t match the room temperature, it could be due to a faulty sensor, incorrect calibration, or other issues.
  • Short Cycling– This is when the HVAC system turns on and off frequently. It could be a sign of an ill-functioning thermostat or the HVAC system.

How a Malfunctioning Thermostat Can Affect Your HVAC System

A malfunctioning thermostat can throw things off balance and cause issues with your HVAC system. It can cause long and unnecessary running times, higher energy bills, or equipment malfunction.
If you don’t fix your thermostat, the continuous cycles can even cause your HVAC system to break down completely or, in severe cases, cause it to become hazardous. In short, maintaining your thermostat is essential for the longevity of your HVAC system.

Replacing versus Repairing

Figuring out if repairing or replacing your thermostat is the right course of action can be challenging. A professional technician from Value HVAC Services can help you determine the best strategy for your system in Lexington. As a rule of thumb, if your thermostat is over 10 years old, experiencing frequent issues, or you’re looking to upgrade your HVAC system, it’s best to replace it.
A new thermostat can bring so many benefits to your home and your HVAC system. New models are usually more energy-efficient and easy to use, allowing you to set schedules or make adjustments remotely. You can also check the HVAC system’s status and detect issues before they escalate, and many also have touchscreen controls that are more user-friendly than older manual ones.

Thermostat Replacement Process and Costs

The procedure for replacing your thermostat will depend on your HVAC system’s age, location, and complexity. Once you find a replacement thermostat you like, it’s best to hire a professional HVAC technician, a professional like Value HVAC Services in Lexington to install it.
The cost of replacement will depend on the model, features, and installation costs involved. While basic programmable thermostats can cost as little as $60, smart thermostats with advanced features can cost more than $300. However, the precision and convenience they offer make smart thermostats a popular option among homeowners.

Tips for Maintaining Your Thermostat and HVAC System

Keeping your thermostat and HVAC system in top form requires routine maintenance, and scheduling annual check-ups with Value HVAC Services in Lexington can catch any issues early on. Here are some things that you can do as a homeowner to help maintain your systems:
  • Change Your Air Filters Regularly
    Dirty air filters restrict airflow, causing your system to work harder. This means it uses more energy to reach your desired temperature, increasing your energy bills. It also leads to poor air quality.


  • Keep Your HVAC System Clean

    Dust, dirt, and other contaminants can accumulate on your HVAC system over time. Regular cleanings from an HVAC professional help remove these contaminants and keep your system running efficiently.

Call to Action

If you’re experiencing issues with your thermostat or HVAC system, don’t hesitate to reach out to Value HVAC Services in Lexington for assistance. Our experienced technicians are available 24/7 to help you with all of your HVAC needs, including repairs and installations. Contact us today to schedule an appointment and enjoy the peace of mind that comes with a well-functioning HVAC system.
“I called Sergei and he and his crew arrived within 30-40 minutes. Fixed the HVAC problem within an hour!!! That’s what I call fast and reliable service!!! I highly recommend this company!”

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Value HVAC provides solutions to all of your HVAC problems, from simple thermostat replacements to entire system installations. You can trust us to be there for you when an issue emerges out of nowhere

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