How Does Your Thermostat Affect HVAC Performance?

The condition of your thermostat can have a significant effect on the performance of your HVAC as that little unit on your wall is the nerve center of the entire system.

The thermostat controls all of the operational functions of the system as it allows you to switch it on and off at will, you can program the unit to do those things at certain temperature levels, and adjust it to operate at specific times of the day. Without your thermostat, the HVAC system just does not run properly.

That’s why it’s so important to ensure that your thermostat is proper working condition and is not showing any signs of malfunction. Your thermostat will be in use during the hot summer months so you may cool down your home and in the cold winter months as well as when you need to warm things up indoors.

But there are so many different types of thermostats on the market with a wide range of accessories and features from which to choose. This can make it confusing for homeowners to diagnose a problem with their heating or cooling, because certain problems are not due to the system having an issue but the thermostat is working incorrectly.

Knowing the difference is critical for managing your air conditioning costs and heating expenses because when your thermostat is not operating as it should be, that can have a negative impact on the efficiency of your system. The result is an HVAC system that is running longer and harder than normal or need be, which can be almost immediately evident in a rise in your electric bills.

Particularly substantial problems can even result in your system becoming entirely inoperable and you can’t heat or cool the home at all. This is obviously not a situation you want to live with as extreme temperatures can be threatening to older or more fragile members of the family. Pets can also have a tough time living in particularly high or low temperatures.

Common Malfunctions

When your thermostat is on the blink, your system is unable to operate properly if at all. There are a number of common thermostat malfunctions you could be dealing with if you find that you are having some issues with getting your system to work correctly.

Some are minor, others could be an indicative of a bigger more complex problem. But if you are experiencing any sort of malfunction, regardless of the size and scope of the issue, it may be a good idea to give One Hour Heating and Air Conditioning a call to come out and diagnose the issue.

Before you do, however, there are a few troubleshooting options you can pursue that are likely going to be a lot easier to solve (and much less expensive too!). Should you be having some problems with your HVAC system, here are a few steps to take that might help you solve those issues by auditing the condition of your thermostat.

Dead Batteries


Sometimes the easiest solution is the one that fixes everything. For thermostats, the most common reason for malfunction is a set of dead batteries inside the unit. While you’re worried that your cooling or heating is inoperable due to some highly expensive repair, the culprit is more often than not a pair of $6.00 batteries.

So if your thermostat isn’t working or the HVAC is malfunctioning, pop out those old batteries and replace them with a fresh pair. Chances are everything will be back to normal instantly.

All you need to do is locate the battery housing, remove the door, and put in the new batteries. Close everything back up and reset or restart your thermostat as necessary. If you find that all is working as normal, then you are back in action and ready to go.

Incorrect Readings


If you find that your thermostat is not working correctly because it’s triggering the system at strange times or when the room is cool or warm already, you may have a thermostat that isn’t getting proper temperature readings.

To solve this problem, your unit may have a dirty sensor or it could be clogged with dust. If you suspect this is your issues, remove the thermostat cover and brush everything clean, paying particular attention to the metal sensors within. But use caution as these metal strips are delicate and they could become damaged.

You should also look for any evidence of corrosion, which is quite common in older units. This could trigger false readings in the thermostat as it’s trying to operate your system. Cleaning away corrosion is easy to do, you just need to get a cleanser that is designed for this type of maintenance.