How Long Does a Home Thermostat Last?

Your thermostat going faulty on the verge of winter or summer is the last thing you want. It can become extremely troublesome and uncomfortable, so here’s a little insight into how you can diagnose early warning signs of your thermostat malfunctioning and what needs to be done.

Check out the next sections as they can guide you on how to prolong your thermostat’s life. Although they last for some time, even new ones can be faulty – have a look on how to spare yourself from additional costs.

What to Look For?

A faulty thermostat can overheat or freeze your home, might stop working altogether, or the temperature is always oscillating. This not only adds to the physical discomfort of high or low temperatures but might also lead to additional financial costs. So here are some of the most common malfunctions and what you can do to determine whether your thermostat can be fixed or just replaced.

One common issue with thermostats is when people realize that the heating or cooling does not stop, so it runs continuously. If your thermostat has a calibration process, this might mean that it is not calibrated or there might be some wiring problem. You can have a look at the instruction manual for the calibration process if you are not sure. If the thermostat has no calibration process, it is high time you changed it.

Has your display stopped functioning? This is yet another potential issue that might be easily fixed by replacing the thermostat’s batteries. If you turn it up and down and there are no lights or changes on the display, it means that the batteries might be at fault. If you change them and there is still no change, then you need to change the thermostat.

Another sign of a faulty thermostat is if it is unresponsive. More specifically, if you adjust it and it does not turn on right away, then it means there might be a wiring issue that does not send the signal to the unit anymore.

Lastly, a sign of a defective thermostat is if the temperature is not consistent. In other words, the temperature in the room is not the same as the temperature set on the thermostat. You can only diagnose this if you have an additional thermometer next to the main one to check the temperature in the room. Make sure you place the thermometer right next to your thermostat, as different places in the house or different rooms are more likely to have different temperatures.

Methods of Troubleshooting Your Home Thermostat

If you have noticed that some of the faulty signs above match your situation, there might be a few tricks that will spare you from investing in a completely new thermostat.

Firstly, check the location of your thermostat. If you notice that the room temperature is different from that of the thermostat’s setting, make sure that it is not placed in direct sunlight which might cause it to overheat and display incorrect temperatures. Alternatively, this might also be an issue if you place the thermostat next to a door, causing it to register colder and hotter temperatures more.

Secondly, make sure the settings are correct. You would be surprised to find how easy it is to forget to switch your thermostat from cooling to heating and vice versa. If you are expecting it to heat your home after a torrid summer, you might believe that it is faulty, when, in fact, most people forget to switch it to heating manually.

Another quick method to check whether your thermostat is faulty or not is the rule of four. If it is winter, turn it four degrees higher or, if it is summer, turn it four degrees lower. At this point, your thermostat should make the familiar sound of getting to work. If you cannot hear anything, it might be a sign that it stopped functioning.

Thermostats, especially older ones, might have issues if you haven’t cleaned the dust in a while, which will cause it to malfunction when it gathers around the electrical components. Remove the cover of the thermostat with care and clean all the dust with a dry rag or cloth. If you have an air gun, you can also use it to blow it all off at once, but make sure you don’t inhale that dust by wearing a protective mask.

Wrapping Up

So, how long does a home thermostat last? Overall, a thermostat might last up to and around 10 years. However, even when installing and using a new one might have small issues due to dust or improper placement. Make sure you clean the dust regularly and check it for potential malfunctioning. If any of the above signs are present to your home thermostat and none of the advice works for you, it might be the time to call a repair technician, or even purchase a new one.

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Billie Rowlandson - October 29, 2019 Reply

Learned a lot from this blog. I’ve had problems like you mentioned (furnace running nonstop) and started to panic. I didn’t realize it might be something less expensive like the thermostat. Articles like these are informative and people should read them so they don’t get fleeced when they have a problem with their heating and cooling system.

    Don’t Touch The Dial - October 30, 2019 Reply

    I was thinking the same thing when I wrote this article, as this happened to me I had content and experience in this matter

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