Honeywell Thermostat Auto Setting! (Follow This)

By - Ron Singh

Updated -

If you want a comfortable temperature in your home, then a thermostat is just what you need.

However, to back the comfortable temperature up with quality, you need a well-functional thermostat like the Honeywell thermostat. 

This thermostat has several features that aid a better operation; for instance, it has an auto setting. But what does this setting do?

The automatic setting on your Honeywell thermostat allows you to switch between the heating and cooling systems without changing settings. The auto setting is preferable because it allows you to set the most comfortable temperature. 

What Is the Auto Mode on Honeywell Thermostat?

Honeywell Thermostat Auto Setting

The auto mode enables you to change from either hot or cold on your auto thermostat.

For example, when your thermostat is on auto mode, the display information would tell you to choose from either “auto heat” or “auto cold.” 

To change the setting to cool, choose “auto cool” and press on the + or – setting to increase or decrease, respectively, when you want to heat the temperature. 

Apart from the heat and excellent options, the thermostat allows you to create the set points for these chosen heat and cold settings.

Set points like leave, wake, return and sleep can be set through the device’s program settings. 

Should My Honeywell Thermostat be on Auto or on?

Thermostats have a variety of settings and instructions that most homeowners end up not using or even looking into.

You might think using the thermostat the way it came is the best option, but it would interest you to know that setting the thermostat to fit your comfort can also save you a lot of money; yes, you saw that right. 

There are two significant settings on your thermostat, the on and auto settings, and your choice of setting determines how they impact your home comfort all year.

In this article segment, we will inform you how you can save money by setting your thermostat correctly. 

#1. The “On” Setting on the Thermostat

The main idea behind setting your thermostat to “on” is that it keeps your thermostat running all the time, even when you do not need it.

When you let the fan run, the filtration system filters the air in the room and keeps it clean. 

In addition, there are fewer start and stop options, so you would come across fewer malfunctions since you wouldn’t need to keep touching the thermostat at all times. 

A significant backlash with this setting is that your heating bills increase significantly.

The only way you can escape this expense is if you also have a variable speed motor installed, but in other cases, you would have to pay as much as 50 dollars every month to keep this fan running nonstop daily. 

Apart from this, you would need to replace your air filter often because the air from the thermostat, after the filter has filtered it, would be clogged with dirt and wouldn’t be able to keep up 24/7 for as long as you have it. 

#2. The “Auto” Setting on Your Thermostat

Setting your thermostat to auto would ensure the fan runs at specific times. You can be able to control your fan with a timer circuit that would be inside the system.

When you go with the auto setting option, you will see that the furnace fan inside the thermostat starts within 30 minutes. 

After you have lit the burner, it is turned off a minute after reaching your desired temperature. 

Most people prefer using their thermostat under the auto setting because it conserves the energy if it is on set.

After all, your fan would only be running when required. Coupled with your heating bill reducing drastically, you would not need to change your air filter frequently when it is on “auto.” 

With everything that has a good side, there are also wrong sides. The downturn with this mode is that your fan has more chances of wearing out because you would need to start and off it more frequently. 

Pros Of “On” SettingCons Of “On” Setting 
the thermostat would distribute more heat in the room Your air filters will wear out faster 
Fewer cases of malfunctions High cost of running 24/7 

Here are the pros and cons of the auto setting:

Pros Of “Auto” Setting Cons Of “Auto” Setting 
Your filters would last longer. The thermostat would distribute less heat in the room. 
Lower cost of running More cases of wear and tear of your fans

How Do I Program My Honeywell Thermostat to Auto?

Setting your Honeywell thermostat to auto is relatively easy. On your thermostat, it would present you with two options, “heat settings” and “cold settings,” and whichever your go for either increases or decreases your room’s heat. 

So, for instance, if you want to increase the heat in your room, go to the “+” option close to “heat setting” decrease “-“ The same goes for every other setting on your thermostat. 

#1. What Temperature Is Best for Your Honeywell Thermostat?

Setting your temperature at 68 degrees in the winter should be the best because it keeps your home warm, and it doesn’t have to spend much.

At night before you sleep or when no one is going to be in the home, you can set your temperature to either 10-15 degrees. 

You can save 5% off costs and still be comfortable doing this. That is for cooler weather, but during the summer, where everywhere is hot, you can still apply that principle the other way round.

You can set your thermostat to about 75-78 degrees when less cooling is required. Remember, it should be in a “ cool setting.” 

#2. Manual Or Programmable Method 

The manual or programmable settings have to be the best settings you can come across.

With these settings, you can be able to save energy and even cost at the same time! I’ll tell you how.

With the automatic settings, you can schedule the times your thermostat would need to be off or on. 

There are even more advanced programmable settings where you can operate your thermostats from a tablet or even your phone. 

You should ensure that your thermostat is compatible with the heating and cooling system so your thermostats because most of these programmable thermostats are either digital, electromechanical, or even a combination of both. 

How Do I Turn on Auto Mode on Honeywell T6 Pro?

You should know that in your Honeywell t6 pro, auto mode is not a default mode, so you would always need to set it up yourself.

You would be able to see the option that says “auto mode” on the home screen of your thermostat, so all you have to do is tap on it. 

For you to choose the preferred mode, cooling on heating, on auto mode, follow the following instructions; 

  • To set up the auto mode, tap on the option that says auto mode until it is in auto mode. 
  • After that, you would see an option that displays “+” and “-” taps on either if you want to increase or reduce the temperature for the active mode. 
  • After taping on the desired option, you should wait for about five minutes before the desired choice shows that it is active. 

#1. Setting Up the Compressor and Fan on Your Honeywell T6 Thermostat

With this auto stat, you would have to be very careful with the operation of the compressor and in-built fan.

When dealing with the compressor, you should make sure that you restart the compressor immediately after a shutdown, so it doesn’t get damaged. 

Also, since the compressor protection forces the thermostat to remain off for a while after shutting it off, you should never attempt to force it on. 

Setting up the fan on your thermostat is not much work. It would help if you tapped on “fan” on your thermostat’s home screen, and different fan modes will appear.

Take on the mode suitable for you, and it would automatically become the default mode. Some available modes include;

  • On, which means your fan will keep running continuously. 
  • Auto; the fan would be able to run only when the cooling or heating system is on. 
  • Circ; the fan would run only at certain set times, at least 35% of the time to keep the air circulating. 

Why Is There No Auto Setting on My Honeywell Thermostat?

You would find a faulty auto setting on your Honeywell thermostat for many reasons.

Although you usually need to set your thermostat to the auto setting if you want it to run automatically, in cases where you still do not find the “auto option,” you can go with this article segment

In most thermostat models, there have to be auto settings because there is no way you can operate comfortably without them there, but in other cases where your auto setting does not work, it might be as a result of either of these;

#1. Software issues 

The primary cause of issues like this is a corrupted file or outdated software.

These problems sometimes interfere with the auto setting on your thermostat, and you can fix this error, your thermostat would need a firm factory reset and re-installation 

#2. Power Problems 

If your thermostat battery has gone faulty or the level of power outage from time to time is too high, it is most likely to mess with the operation of your auto thermostat setting.

If not taken care of adequately, it may pose a significant avenue for frustration. 

#3. Poor Or Old Wirings 

Another primary reason your auto setting does not work as it should is wrong wirings, wearing out of the wires, and cases where the wires were grown outside protected areas. 

#4. Furnace Problems 

If the auto-configuration doesn’t work according to your furnace, our auto-thermostat options won’t work. All you have to do is ensure that all the thermostat inputs are suitable. 

#5. Possible Sensor Issues 

Another primary reason most people come across is the problem with the sensors. Once the sensors are faulty, they will not be able to give the proper auto-setting instructions.

You would have to have your sensors fixed since you cannot replace them. 

Now that you have basic knowledge of some common reasons why your Honeywell thermostats are not working, you should work towards fixing these faults in the following ways; 

  • Troubleshoot your thermostat to know what the problem is. It won’t come out as planned if you choose to assume and work on your assumptions
  • Let’s assume the issue was the wiring; if you are inexperienced in this field, you would want to get a professional, and if not, you should check the wires inside and find out which has the issue. 
  • Once you have discovered the issue, fix it if you can or call on a professional; always ensure that you screw your thermostats nicely after working on it. 
  • Sometimes, your auto settings would refuse to work because it needs updating. For example, you might want to update the system for programmable autos tats.
  • If your sensor is faulty, you should ensure that you get a  very professional person to repair it, or you can replace it, although that is not so easy. 


You can always set your thermostat to the best for you, but then you have to consider each of the pros and cons before venturing into them. I hope this article helps you know which setting to use.

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