Honeywell 6000 Thermostat Troubleshooting: Total Guides

When it comes to thermostats, you can never go wrong with the ones from Honeywell brand. Their thermostats not only have super amazing features and specifications but offer utmost comfort to you and your family while at home.

Besides, there are a lot of Honeywell thermostats to choose from ranging from series 1000, 2000, 4000, 5000, 6000, 8000, 9000 and T series among others. All these have their unique features and can either be programmable, non-programmable or smart. Depending on your needs, preference or budget, you cannot fail to get one that will control temperatures in your home.

However, a thermostat may fail to work at times because of various reasons. There is no need to worry because this is something you can sort in minutes unless there emerges complexity that requires a professional’s attention. This article majorly focuses on Honeywell 6000 thermostat troubleshooting.

Programmable, Manual or Smart Honeywell thermostats, which one is best?

Many people tend to confuse these three types of thermostats but you should note that they are different. Manual thermostats have been there since the evolution of thermostats and are almost similar to analogue thermostats. They help to maintain the temperature inside your house, whether you need it hot, cold or medium.

It comes with a knob that you use to adjust temperature. Every time you leave the house, you have to turn it on and off. This can be quite tiresome and they use up a lot of energy and are not precise.

On the other hand, programmable thermostats are an upgrade of the manual ones. These ones come with settings that enable you to program them whenever you want to use them. You can program them to either hot or cold temperatures and then leave your house.

They will just do like you set them to. Further, you can schedule your temperature on a weekly basis. They are cost effective and save on time as well. However, they are not usually universal.

Smart thermostats are the latest in the market and are highly advanced than programmable ones. You can connect them to a Wi-Fi network and control them via your smartphone, tablet or laptop. They also have sensors that sense whenever you are home or away and adjust the temperatures accordingly.

Besides, they are easy to use because you can operate them remotely. There are those that are compatible with voice control features like Alexa thereby allowing you to use your voice to adjust the temperature in whatever way you want.

How do you lock and unlock a Honeywell 6000 thermostat?How do you lock and unlock a Honeywell 6000 thermostat?

After purchasing a Honeywell 6000 thermostat, you have to know some basics about it and this includes locking and unlocking it. Why should you lock a thermostat in the first place? The first reason is to prevent kids from tampering with it.

Also, locking a thermostat avoids any unnecessary temperature adjustments by people in your house. You are the only one who can access it. A new thermostat needs unlocking before using it.

Unlocking a Honeywell 6000 thermostat

  •  Find the ‘HOLD’ button on the front side of the thermostat for about three seconds. This helps to disable the automatic program momentarily.
  •  You can either increase or decrease the temperature by pushing the up and down button sequentially.
  • Push the ‘system’ button to change the temperature setting to either heat or cold.
  •  There are two settings; manual and programmed. If you want to change from one to the other select ‘run schedule’.

For more information about Unlocking a Honeywell Thermostat click here

Locking a Honeywell 6000 thermostat

  •  Locate the ‘up’ and ‘down’ buttons on the display of your thermostat and press on them till you find the temperature that you desire.
  •  Below the ‘hold’ button on the same display there is a button. Select it.
  •  You will see ‘permanent hold’ on the display. This assures you that the thermostat is locked.

Malfunctioned Honeywell 6000 thermostatMalfunctioned Honeywell 6000 thermostat

The Honeywell 6000 thermostat ensures that you get really comfortable as it controls the heating and cooling system in your house. Nevertheless, there are moments when it does not deliver results like you expect it to. In case of this, you need to identify where the problem is and find a suitable solution.

There are some common problems that you can associate with a Honeywell thermostat. We outline some of them below here and how to troubleshoot them.

1) LCD display is off

In a Honeywell 6000 thermostat, the LCD display is for showing temperature, alerting you when the battery is almost dead and displaying whether the thermostat is in lock or unlock mode among others. Therefore, you can easily notice when it is off.

One indicator of a blank LCD display is dead batteries. Usually, there is a warning of a low battery on the thermostat’s display 60 days earlier before your battery dies completely. If this is the case, replace the old batteries with new ones and see if the display will behave.

Additionally, you should check if the main circuit breaker has a trip or if the fuse is faulty. These two scenarios may cause the thermostat’s LCD display to be off. To correct this, replace the blown fuse. For the main circuit breaker just reset it by pushing the switch to the ‘OFF’ position then back to the ‘ON’ position.

2) Thermostat does not perform cooling function

When the weather is hot, you expect your thermostat to cool the surrounding in your home. But this does not happen with your thermostat. First, check the settings of your thermostat. Is it set to the cool position or rather is it on? Change the settings and see if there is any change.

There are thermostats that have a delay mode. In case the delay mode is on, your thermostat will not cool until you adjust the settings or wait for about 5 to 10 minutes. Also, before you set your thermostat to ‘cool’, ensure that its temperature is below that of the room and the surrounding. This will enable it to cool the room as is the norm.

3) Thermostat does not heat

When your thermostat is not able to emit heat during the cold season, there is a problem. Check to ensure that there is no tripping on your main breaker circuit. In case there is, simply reset it.

In other cases, locate the system button on your thermostat and press on it to set the system to ‘heat’. Ensure the temperature of the thermostat is higher than the temperature inside the house. This will get your thermostat’s heating function to work.

4) Thermostat installation

Installing the Honeywell 6000 thermostat is a simple job that does not need a professional. Get the right tools for the job and take necessary precaution. The trick is on the wiring. If the wires are loose or faulty, then your thermostat will not function.

Location of installation also matters a lot. There are places where you should not install your thermostat. They include; in the kitchen, near doors and windows, areas where there is direct sunlight, along hallways, rarely used rooms or next to an air vent among others.

Such places may lead to the thermostat detecting inaccurate temperature readings and thus function improperly. The best place to install it is in an interior wall of your living room.

Honeywell Thermostat Flashing Return? Click Here to fix

Resetting Honeywell 6000 thermostatResetting Honeywell 6000 thermostat

Resetting your thermostat is the easiest way to troubleshoot any problems it is experiencing. There are steps to follow in resetting it.

  • Turn on your thermostat.
  • Find the ‘FAN’ button and hold it without releasing it.
  • Locate the button with the arrow that points up and press on it without releasing as well.
  •  Hold and release both the buttons simultaneously after 5 seconds.
  •  Count the 4th button from the left side of your thermostat till you see number ‘39’ on the LCD display.
  •  Press the arrow that points down until ‘0’ appears on the display.
  • Select ‘done’. Your thermostat is ready for use.

If you want to carry out a Wi-Fi reset on your thermostat, follow the steps above till the last one and then do this;

  • At this point, you are now ready to configure your thermostat with the available Wi-Fi network.
  •  Get your smartphone and go to the device settings. You will find a list of the available Wi-Fi networks.
  •  Choose the correct Wi-Fi name and select ‘connect’.
  •  Go back to your home screen and open the Honeywell thermostat application. If you do not have it, download it.
  • Choose the home Wi-Fi network and then connect.
  •  You will see the text ‘connection success’ and you are good to go.

read also: How to Connect Honeywell Thermostat to Google Home? Step by Step Guides 

There is another way in which you can reset your Honeywell 6000 programmable thermostat using batteries if it fails to function.

  • First, ensure that you turn off your thermostat.
  • Using a screwdriver, carefully remove the thermostat from the wall plate.
  • Locate the battery compartment and open it either by hand or using a screw driver depending on the make.
  • Pull out the batteries.
  • Put back the batteries in a reverse manner. Make sure that the positive terminals match with the negative terminals conversely. Leave them in that position for about 10 seconds.
  •  After that, return the batteries to their original position and close the compartment.
  • Turn the thermostat back on. The display should be on. The thermostat is therefore reset.

How to restore default settings on a Honeywell 6000 thermostat

If you need to restore the default settings on your thermostat to make it work properly, follow the steps below;

  •  Select set clock or day or schedule.
  •  Press on set schedule.
  •  Press done and next buttons simultaneously for 5 seconds.

Schedule resetting Honeywell 6000 thermostat

  •  Select the arrow button that points up and the Fan button at the same time.
  •  On the left side of the display, adjust the number till it reads 85.
  • On the right side of the display, change the number until it reads 1.
  •  The thermostat is back to its original settings.


Troubleshooting the Honeywell 6000 thermostat is a walk in the park for as long as you know what the problem is. Ensure you follow this guide carefully to achieve excellent results. We hope that you find this article helpful.

To know more about Honeywell 6000 Thermostat Troubleshooting you might be interested to watch this video below, Enjoy!

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