How to change password on honeywell proseries thermostat

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When my sister came over with her two kids last week, I was woefully unprepared to deal with their energy.

The shenanigans began when I found that the temperature of the interior of the house was much lower than usual.

I immediately rushed to set my Honeywell thermostat back to normal and told the children not to mess with it again.

I looked up how to lock my Honeywell Thermostat’s keypad so that no one else could change the thermostat’s settings.

Naturally, I also looked up how to unlock my thermostat as well, so that I could change the settings myself whenever I wanted to.

To Unlock a Honeywell Thermostat, enter the PIN after prompting unlock.

To do this on the T4 Pro Series Honeywell Thermostat, press the “Unlock” button. On the T6 Pro Series, tap the lock symbol on the screen.

On the 8000 series, Hold down both the ‘System’ and ‘Auto’ options and then hold the blank lower center button.

I’ve also talked about how to lock all the different Honeywell Thermostats.

What are the different Lock Modes in Honeywell Thermostats?

The primary reason we lock our Honeywell thermostats is to allow us to control who can change our devices’ settings.

We have the option of locking the keypad of our devices with either a ‘Full’ lock or a ‘Partial’ lock.

You’ll be able to see this option when you access the ‘Menu’ section of your device.

There are three types of lock settings available in your Honeywell thermostats.

The names in the brackets denote how they are shown in the device:

1. Full (On): The ‘Full’ lock setting prevents complete access to the thermostat settings.
2. Partial (Part): The ‘Partial’ lock setting will allow you to change the temperature. All the other settings will be inaccessible.
3. Off (Off): The keypad of your thermostat will be unlocked in this lock setting.

The ‘On’ and ‘Part’ locking settings can be removed using a PIN.

Keep the locking setting as ‘Part’ if you tend to deviate from your schedule. Set your lock to ‘Full’ if you usually leave the device to work on a schedule.

This way, you’ll be saving time. However, please ensure that you don’t forget your lock code.

Entering the lock code will disable the lock mode, and the system switches into the ‘Off’ setting. 

Use the guidelines given below to grasp the unlocking procedure of your Honeywell thermostats.

How to Unlock the T4 Pro Series Programmable Thermostat

You can unlock the keypad of your T4 Pro Programmable Thermostat with the help of the steps given below:

1. Press the center button, labeled “Unlock”. You can now key in the default password, ‘1234’.
2. Tap the +/- keys on the display to change the selected number.
3. Tap ‘Select’ to set the number.
4. Repeat steps 2 and 3 until you input all four digits in the correct order.
5. Once you have done this, the device will have been unlocked, which means that the settings can now be accessed freely by you.

How to Unlock the T6 Pro Series Smart Thermostat

To unlock the keypad of the T6 Pro Smart Thermostat, you would need to follow these steps:

1. Tap the lock symbol on the display. Now, you would need to type in the PIN.
2. Tap the +/- keys to change the individual digits on the screen.
3. Tap’ Select’ to confirm the digit.
4. Repeat steps 2 and 3 until you input all four digits in the correct order.
5. Once you have done this, the device will have been unlocked, which means that the settings can now be accessed freely by you. 

Can’t Remember PIN Code for T6 Pro Series?

The PIN of your T6 Pro Series thermostat will be a four-digit number. Still, people do tend to forget these numbers, so you should know how to unlock Honeywell thermostat without code.

Maybe, you might not be a frequent user of the device, especially if you schedule the device timings properly.

Maybe, your kids might have changed the lock configuration of your device.

For the T4 Pro thermostat, the PIN usually will be 1234. To unlock Honeywell Pro series thermostat without pin, you would need to:

1. Remove your thermostat’s faceplate and find a four-digit number on the top right corner of the device.
2. Add 1234 to this four-digit code.
3. The number obtained after addition will be the PIN of your thermostat.

Follow the steps given in the previous section to unlock your device with the new PIN that we found in this section.

You can unlock the keypad of your 8000 series Thermostat with the help of the steps given below:

1. Hold down both the ‘System’ and ‘Auto’ options on the screen together.
2. Tap and hold the blank key in the bottom center of the keypad till the display changes.
3. Change the digits on the left side to ‘0670’, using the up and down keys in the middle of the screen.
4. Change the digit on the right-hand side to 0 with the help of the up/down keys.
5. Tap “Done” on the screen to complete the unlock.

To lock these devices, these are the steps to be followed:

How to Lock the T4 Pro Series Programmable Thermostat

You can lock the keypad of your T4 Pro Programmable Thermostat with the help of the steps given below:

1. Tap on ‘Menu’ on the screen of the device.
2. Go to the ‘Lock’ setting by tapping the +/- buttons.
3. Tap on Select.
4. Tap the +/- buttons to select your lock mode.
5. Tap on Select to confirm your choice.
6. With this, your device will have been successfully locked, either fully or partially, depending on what you did in step 4. 

How to Lock the T6 Pro Series Z-Wave Thermostat

You can lock the keypad of your T6 Pro Z-Wave Thermostat with the help of the steps given below:

1. Tap on ‘Menu’ on the screen of the device.
2. Go to the ‘Screen Lock’ setting by tapping the arrow buttons.
3. Tap on ‘Select’.
4. Select between the two locking modes (On and Part) using the arrow buttons.
5. Tap on ‘Select’ to confirm your choice.
6. Finalize the settings by selecting ‘Yes’.
7. With this, your device will have been successfully locked, either fully or partially, depending on what you did in step 4. 

How to Lock the T6 Pro Series Smart Thermostat

You can lock the keypad of your T6 Pro Smart Thermostat with the help of the steps given below:

1. Tap on ‘Menu’ on the screen of the device.
2. Go to the ‘Screen Lock’ setting by tapping the arrow buttons.
3. Tap on ‘Select’.
4. Choose either of the two lock modes with the help of the arrow keys.
5. Tap on ‘Select’ to confirm your choice.
6. Finalize the settings by selecting ‘Yes’.
7. With this, your device will have been successfully locked, either fully or partially, depending on what you did in step 4.

How to Lock the Honeywell 8000 Series Thermostat

You can lock the keypad of your 8000 series Thermostat with the help of the steps given below:

1. Tap on ‘System’ on your display.
2. Tap and hold the blank lower center button until the display changes.
3. Change the digits on the left side to ‘0670’ using the up/down keys that can be seen in the middle of the screen.
4. Change the digits on the right side using the up/down keys.
5. Select one if you want the ‘Part’ locking and two if you want the ‘on’ locking. Selecting 0 removes the lock from the device.
6. Tap on ‘Done’ on the lower right to confirm.

Conclusion:

Your Honeywell thermostat has three available locking modes. The “Full” locking cancels entry to the keypad, “Partial” locking allows you to change the temperature, and the “Off” setting allows the device to be in the unlocked state.

You can also set either a Temporary Hold or Permanent Hold to maintain the temperature.

This will ensure that you’ll never face the trouble of having the settings of your thermostat changed by unassuming children or guests, ever again.

Now that you’ve secured your thermostat settings to your liking, you can enjoy the other cool features of your Honeywell Thermostat, like the automatic scheduling feature.

If you’re feeling adventurous, you could try installing your Honeywell Thermostat without a C-wire. 

You May Also Enjoy Reading:

• Honeywell Thermostat Recovery Mode: How To Override
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• Honeywell Thermostat Wait Message: How To Fix It?
• 5 Honeywell Wi-Fi Thermostat Connection Problem Fixes
• Demystifying Thermostat Wiring Colours – What Goes Where?

Frequently Asked Questions

How do you override a Honeywell thermostat?

You will need to tap and hold the ‘display’ key while pressing the ‘off’ button.

Now, keep pressing the ‘display’ button while leaving the ‘off’ button. 

As you are holding the ‘display’ key, tap and hold the ‘up’ key. Release both the ‘display’ and ‘up’ keys together.

This should override your Honeywell thermostat.

Is there a reset button on a Honeywell thermostat?

Most of the Honeywell thermostats wouldn’t have a dedicated reset button as such.

To reset these devices, you would need to access the menu and scroll through to the reset option, which is a straightforward process.

How do I troubleshoot my Honeywell thermostat?

To troubleshoot your Honeywell Thermostat, you could try resetting the device by following the steps given above.

If this doesn’t seem to work, you could contact Honeywell Customer Service for help.

How do I get my Honeywell thermostat off a hold?

A temporary hold on your Honeywell Thermostat can be removed by manually changing the temperature on the device.

To remove a permanent hold, tap ‘+’ or ‘-‘ and then tap ‘Cancel’.

How long does a hold last on the Honeywell thermostat?

A temporary hold lasts for a period of fewer than 12 hours until the next schedule starts.

You can give the temporary hold a fixed time period for which it will be active.

However, a permanent hold will last for an indefinite amount of time until you choose to override the hold manually.

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