How Do You Unlock A Honeywell Thermostat? 2

How Do You Unlock A Honeywell Thermostat?

The majority of thermostats have parental controls to stop kids from altering the temperature within the house. We’ve all been there. Sitting down to relax only to find the temperature of your house has become much lower than usual.

Upon inspecting your thermostat, you’ve found it has been adjusted. And even after telling the kids “not to mess with the thermostat,” they may think they’re doing the right thing if they are too hot or too cold.

That’s what kids do but that is also why Honeywell thermostats have parental controls! The best way to stop your thermostat from being changed is to lock certain settings in place.

However, some of these lockout modes can become difficult to unlock. Therefore, you may be stuck with a temperature longer than you desired.

Today, we are going to make sure your home is always at the ideal temperature. In this article, we will guide you through the different lockout modes that can be activated on your Honeywell thermostat and show you how to unlock each of them.

So, it doesn’t matter if you have forgotten how to unlock your thermostat. We are here to help! Let’s begin by taking a look at the various Honeywell thermostat lock modes that you can operate at home.

Different Honeywell thermostat lock modes

The main reason people lock their Honeywell thermostats is to control who can and can not change the device’s settings.

As with many thermostats, there is the option of locking the keypad with a “full” lock mode or a “partial” lock mode. This is visible when you access the “menu” section of your thermostat.

When we consider Honeywell thermostats, there are three types of lock settings available. These are:

  • Full – This will be shown on your thermostat as “On” and this is a full lock setting that prevents any access to its settings.
  • Partial – Your Honeywell thermostat will have a “Partial” lock setting. This allows you to change the temperature while all other settings on the device can not be accessed.
  • Off – Simply marked as “Off” on your thermostat, this means the keypad is unlocked at all times.

You can remove the “On” and “Part” lock settings by entering a PIN. If you want to change your heating schedule now and again, then we suggest keeping the “Part” setting in place. If you intend to leave the thermostat on a regular schedule, then you should set the lock to “Full.”

This will save time as your house will warm up and cool down at the same time every day. 

Nonetheless, it i crucial that you do not forget your lock code. This code allows you to disable the lock mode so the system switches to an “Off” setting.

How to unlock different Honeywell thermostats 

Once you have gotten to grips with the different lock settings on your Honeywell thermostat, you will need to understand the unlock procedure for your particular thermostat.

The following guidelines will help you unlock your Honeywell thermostat so you can get your desired temperatures once again.

T6 Pro Series Thermostat

If you own a T6 Pro Series Honeywell thermostat, then your PIN will be a four-digit number. Even though it’s the same number of digits as your regular bank card’s PIN, it is easy to forget these numbers. This is especially true if you don’t use your thermostat very often.

If you usually have a schedule in place, there is no need to remember the PIN as you lock the thermostat into the “Full” setting and leave it to do the rest.

Sometimes, someone else may have changed the lock configuration without you knowing which can be extremely frustrating. However, most T4 Pro thermostats use the PIN sequence of 1234. When it comes to the T6 Pro Series, though, you will need to do the following:

  1. Remove the thermostat’s faceplate.
  2. Locate a four-digit number on the top right of the thermostat.
  3. Add “1234” to this four-digit code.
  4. The number that is left after the addition will be the PIN of your thermostat.
  5. Press the center button that is labeled “Unlock.”
  6. Key in the password.
  7. Press the +/- keys on the display to change the numbers that are selected.
  8. Now, tap select to set this number.
  9. Repeat steps 7 and 8 until all four digits have been entered in the right order.
  10. Once this is done, your device will be unlocked. Therefore, your settings can now be adjusted easily and freely by yourself.

T6 Pro Series Smart Thermostat 

The unlock process is the same as the T6 Pro Series set out above.

  1. Tap the lock symbol visible on the thermostat’s display.
  2. Enter the PIN number.
  3. Tap the +/- buttons to change between the digits on the screen.
  4. Press “Select” to confirm the digit.
  5. Repeat steps 2 and 3 until all digits have been entered in the right order.

Your T6 Pro Series Smart thermostat will now be ready to adjust.

T4 Pro Programmable Thermostat 

To unlock your T4 Pro Programmable thermostat, you just need to repeat the same process as outlined above. For clarification, follow these steps:

  1. Press the “Unlock” button.
  2. Type in the default password “1234.”
  3. Tap the +/- keys found on the display to change between the selected numbers.
  4. Press “Select” to set the correct number.
  5. Repeat steps 2 and 3 until all four digits have been inputted in the correct order.

The device will now be unlocked so you can manage the settings easily.

Honeywell 8000 Series Thermostat 

Follow these steps to unlock the Honeywell 8000 Series thermostat:

  1. Hold down the “System” and “Auto” options together. These appear on the screen.
  2. Tap and hold the blank key. This is located at the bottom center of the thermostat’s keypad. Do this until the display changes.
  3. Now, you need to change the digits that appear on the left side. Adjust these to “0670” using the up and down keys found in the middle of the screen.
  4. Next, the digit on the right needs to be changed to “0” using the up and down keys again.
  5. To complete the unlocking of the thermostat, simply press “Done.”

VisionPro TH8321WF and VisionPRO Series with RedLINK models

For these particular thermostats, you need to:

  1. Press “MENU.”
  2. Find the Security Settings by using the arrow buttons on the device.
  3. Press “Select.”
  4. Enter the password with the arrow buttons.
  5. Once entered, press “Done.”

As you can see, the unlocking process with all of Honeywell’s thermostats is pretty similar. Thankfully, it’s pretty straightforward too, even if you have forgotten the password. 

Now you know how to unlock your thermostat, let’s take a look at how to lock it so no one can change the settings without you knowing again.

How to lock Honeywell thermostats

How to lock Honeywell thermostats

T6 Pro Series Thermostat 

It is just as easy to lock your T6 Pro Series thermostat as it is to unlock it. Here are the steps to do so:

  1. Press “Menu” on the thermostat’s screen.
  2. Navigate to the “Screen Lock” option by tapping the device’s arrow settings.
  3. Tap “Select.”
  4. Here, you can choose between the two lock modes. Pick the one you want by using the arrow keys.
  5. Tap “Select” to confirm the option you have chosen.
  6. Select “Yes” to finalize the thermostat’s settings.

Your T6 Pro Series thermostat should now be locked. Whether it’s fully or partially locked depends on what you chose in step 4.

T6 Pro Series Smart Thermostat

To lock your T6 Pro Series Smart thermostat, follow these steps:

  1. Choose “Menu” on your thermostat’s display.
  2. Find “SCREEN LOCK” by pressing the arrow buttons.
  3. Tap on “Select.”
  4. Choose between “PARTIAL LOCK” or “FULL LOCK” with the help of the arrow keys.
  5. When you have decided which option to go with, press “Select.”
  6. When the PIN number appears on your screen, write it down or memorize it for future reference.
  7. Tap on “Select” and choose “Yes” to finalize your settings.

Your thermostat will now be locked. Whether it’s fully or partially locked depends on your choice in step 4.

T4 Pro Programmable Thermostat

Here are the simple steps to lock your T4 Pro Programmable thermostat:

  1. Press “Menu” on the thermostat’s display.
  2. Using the +/- keys, find your way to the “Lock” options.
  3. Once you have found them, press “Select.”
  4. Once again, press the +/- buttons to select your desired lock mode.
  5. Choose “Select” to confirm your lock choice.

Once again, your thermostat will be locked according to your choice of lock mode.

Honeywell 8000 Series Thermostat 

When locking the Honeywell 8000 Series thermostat, including VisionPro, you need to:

  1. Choose “System” on your display.
  2. Press and hold down the blank button found in the lower center of the thermostat’s display. Do this until the display changes. With some models, you may have to hold down the 2nd and 4th blank buttons at this stage.
  3. Now, change the left digits to “0670” by using the up and down buttons located in the middle of the display.
  4. Then, change the right digits using the up and down buttons found on the right-hand side of the device.
  5. For “Partial” lock, choose “1.” For the “Full” lock, choose “2.” If you choose “0”, you will remove any lock on the thermostat.
  6. Once completed, press “DONE” on the lower right of the thermostat to confirm the changes. 

You’ve guessed it! Your Honeywell 8000 Series thermostat is now locked either partially or fully. 

VisionPRO TH8321WF and VisionPRO Series 

To lock other models such as the VisionPRO TH8321WF or the VisionPRO Series with RedLINK models, follow these steps:

  1. Press and choose “MENU.”
  2. Navigate your way to the device’s “Security Settings” with the help of the arrow buttons.
  3. Press “Select.”
  4. Choose between either “Change Lock Mode” or “Create Password” using the arrow keys. 
  5. When finalized, press “Done.” If you decide to create a password, we recommend writing this down in case you forget it.

In Conclusion 

From reading our article, you should now be able to unlock and lock your Honeywell thermostat with ease. Doing so will allow you to enjoy a comfortable temperature in your home at all times with no risk of pesky hands changing the settings again.

Having control over who changes the settings on your Honeywell thermostat is essential. Not only will it maintain a proper temperature in your home but it can save money on energy bills. 

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