Honeywell Thermostat Not Reading Correct Temperature? Try This

Honeywell Thermostat Not Reading Correct Temperature

If your Honeywell Thermostat is not reading the correct temperature it will make it difficult to control the temperature in your house. This is a common issue with the Honeywell Thermostat and can be because of a few reasons.

Have you changed the filters in a while? Maybe you need to move the location of your Honeywell Thermostat. Whatever the issue may be it could be something you can easily fix yourself.

In this article, I will cover the most common reasons why the Honeywell Thermostat is not reading the correct temperature and ways you can easily troubleshoot it yourself.

Why is Honeywell Thermostat Not Reading Correct Temperature?

There could be many reasons why your Honeywell Thermostat is not reading the correct temperature in your house which can cause issues with cooling and heating your house the way you want.

Issues such as needing to change the location due to temperature fluctuation in the room your Honeywell Thermostat is in. It could also be due to blocked vents, needing to change the air filter, and a few more.

A symptom you may have noticed when your Honeywell thermostat won’t read the temperature correctly is that the thermostat won’t turn on the AC.

I will be going over the main reasons why this could be happening and ways you can fix it yourself without calling a specialist or having to replace the whole unit.

Continue reading below and see why your Honeywell Thermostat is not reading the correct temperature in your home.

1. Honeywell Thermostat Is Not In Right Location

If you are experiencing issues with your Honeywell Thermostat not reading the correct temperature in your home it could simply be the location your thermostat is located in.

If it is in a room that has temperature fluctuations it could cause your Honeywell Thermostat to read the incorrect temperature. When this happens it could either be cooling your home when you want it hot, or heating your home when you need it cooler.

This is something that can become annoying, especially when you have a smart thermostat such as the Honeywell Thermostat.

When you have the Honeywell Thermostat located where it is experiencing temperature swing this can cause the smart thermostat to read the overall temperature of the room incorrectly.

Fix – Change Location Of Your Honeywell Thermostat

When your Honeywell Thermostat is not reading the temperature of the room correctly it could be an easy fix like changing the location of your Honeywell Thermostat in your home.

This is the most common reason your Honeywell Thermostat is not reading the correct temperature and an easy fix you can do yourself. When you change your Honeywell Thermostat make sure it is not in a room that experiences a lot of temperature swings.

Another to consider is if you install your Honeywell Thermostat near a cooling or heating appliance, for example, your microwave, stove, hair dryer, or even sunlamps, can cause the smart thermostat to not read the temperature of the room correctly.

Never put it in direct sunlight because this can also change how your Honeywell Thermostat reads the room.

2. Old/Dirty Air Filters On Your Honeywell Thermostat

One thing people tend to forget when owning a Honeywell Thermostat is that they come with air filters.

Air filters that need to be changed on the regular if you want your Honeywell Thermostat to work at its best. When you have a dirty and old air filter this can cause your Honeywell Thermostat to not read the temperature of the room correctly.

Not only that but having old and dirty air filters can cause other issues, like impacting the quality of air that is coming out and it can also limit the function of your smart thermostat.

Overall having dirty and old air filters in your Honeywell Thermostat is not good for the device and for your home.

Fix – Change Your Honeywell THermostat Air Filters

No matter if you take good care of the air filters on your Honeywell Thermostat they go bad over time.

Air filters main function is to filter all the stuff you do not want blowing in your home such as dirt, meaning they will become dirty over time and need to be replaced regularly.

How clean and new your air filters are can determine the function of your Honeywell Thermostat. If you have dirty air filters this can cause a lot of issues with your Honeywell Thermostat like not cooling or heating your home properly.

3. Honeywell Thermostat is Dirty

When you have had your Honeywell Thermostat over time it can accumulate dirt and dust on the device, not just the air filters. It could have blocked vents that are preventing your smart thermostat from reading the room correctly.

If your Honeywell Thermostat has dirt blocking its vents this can cause the thermostat to read a higher temperature than what the room actually is.

Having a lot of dirt on your thermostat can cause it to overheat where the temperature sensor is located. Thankfully this is an easy fix using some elbow grease and canned air.

Fix – Clean Your Honeywell Thermostat

When you are having issues with dirty and blocked vents making your Honeywell Thermostat read the wrong temperature in your home, it can simply be solved by a little TLC.

Cleaning your Honeywell THermostat should be a regular thing to do. If your vents are blocked by dust, open the vents up and vacuum it or blow the air out. Use air in a can to get to the places where a cloth can not reach.

Take a soft cloth and wipe down the entire thermostat where you can. If you make this a habit it can make the lifespan of your Honeywell Thermostat last longer.

4. Honeywell Thermostat Sensor Faulty

Is your Honeywell Thermostat not reading the temperature of your home correctly? If you have already cleared your smart thermostat, changed the air filters, and moved it to another location, and you are still having issues with reading the temperature of the room correctly, it could be a faulty sensor.

The sensor is responsible for keeping track of the temperature of your home, if the sensor is faulty it could be the cause of your Honeywell Thermostat not reading the temperature of the room correctly.

Fix – Check to See If Honeywell Thermostat is Faulty

The sensor is one of the first things to go bad on a Honeywell Thermostat over time, if you noticed the thermostat is not reading the right temperature at all it most likely is a sensor issue.

Sadly there is no way to fix a faulty sensor on your Honeywell Thermostat, you will have to contact someone who can repair the sensor. You can also check your warranty and see if you can get it replaced.

If you can not get someone to repair it and you do not have a warranty on your Honeywell Thermostat the only solution is to replace it completely with a brand new thermostat.

5. Honeywell Thermostat Needs to Be Calibrated and Leveled

One thing to consider when owning your Honeywell Thermostat is that when installing it make sure it is leveled and calibrated correctly.

With an older thermostat, this was a crucial component when installing a thermostat, however with the newer model it is not as important. But do keep in mind if your Honeywell Thermostat is not leveled it may cause issues with it reading the correct temperature of your home.

If your Honeywell Thermostat was not calibrated correctly and has a temperature offset this can cause your thermostat to read the room a few degrees higher or lower than the actual room’s temperature.

Fix – Level and Calibrate Your Honeywell Thermostat

To make sure that your Honeywell Thermostat is reading the correct temperature of your home make sure you level the smart thermostat correctly. This is not a common issue with digital thermostats but with the older models.

With that being said it does not hurt to make sure your thermostat is leveled. If your Honeywell Thermostat needs to be Calibrated you will need to look at your manual to see how to Calibrate your thermostat properly.

6. Replace Honeywell Thermostat Or Contact Support

If you have placed the thermostat in the correct location, checked the air filters, the tried all of the other small fixes, and it still won’t read your temperature correctly, it’s time to either replace your Honeywell Thermostat.

I personally use the Honeywell Home Thermostat, which I picked up from Amazon.

Or contact Honeywell Support.

Note: Only pick up a new Honeywell Thermostat if you’re convinced the one you currently have has too many issues. There’s no point in picking up a new thermostat if the problem with your current thermostat can easily be fixed.

Brady Klinger-Meyers is an experienced writer and marketer with who currently writes for Robodens as well as other popular sites like MakeUseOf and Techzillo. At Robodens, he focuses on general smart home advice with his interest being accessories and gadgets. Read our Editorial Guidelines and Fact Checking process.


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