How to Unlock a Honeywell Thermostat Guide

How to Unlock Honeywell Thermostat – Complete Guide

Have you locked yourself out of your Honeywell thermostat and are wondering how to unlock Honeywell thermostat? Well, you are not alone. As it turns out, there are several users who find it tricky to unlock it for one reason or another. 

Smart thermostats are not new to consumers anymore. They offer advanced temperature controlling features while limiting the power consumption by up to 30%.

Some thermostats including the Honeywell feature a lock system to authorize the use of the thermostat. While, to some people, it’s bread & butter, others might struggle to unlock it without professional guidance. 

To unlock a Honeywell thermostat, you have to enter the code after stimulating unlock. But what if you don’t remember the code?

In this tutorial, I will walk you through several ways you can use to unlock your Honeywell Thermostat. I will also explain what to do in case you lose the thermostat password.

Let’s dive in.

What are the several lock modes in the Honeywell thermostat?

The main reason behind us locking our Honeywell thermostat is to authorize us to command who can modify our device’s settings. Also, we get the choice of either partially or fully locking the keypad of our devices. To get to see this option you have to go to the ‘menu’ section of your device.

The Honeywell thermostat features three types of locks in the settings. The specifications in the bracket demonstrate in which way they are in the device:

  1. Full (On): This setting of a ‘full’ lock prevents total access to the thermostat settings.
  2. Partial (Part): In this setting, you will only be allowed to change the temperature of the thermostat only, and all the other settings will not be accessible.
  3. Off (Off): In this, the whole setting of the thermostat will be completely unlocked.
    To remove ‘on’ and ‘part’ settings you will need a code.
    You should keep the settings on ‘full’ if you normally leave the device on a schedule to work. Keep it on ‘Part’ if you are likely to deviate from your schedule. In this way, you will be saving a lot of time. Also, make sure that you never forget your code. When you enter the code it will unlock the lock mode and switch it to ‘Off’ settings.

Also Read: Ring Doorbell not connecting to Wi-Fi: how to fix it?

How to unlock Honeywell thermostat pro series?

Unlocking and locking the Honeywell thermostat proseries is not such a big deal, having a little knowledge of keys and terms makes it a lot easier. Unlocking and locking procedures of Honeywell proseries T4 and T6 are the same.

For unlocking the Honeywell proseries you have to follow the sequence of steps given below:

  1. Click on the button in the middle of the Honeywell pro series thermostat.
  2. Next you have to input your code by clicking on the “+” or “-” button to modify the digit to enter the code.
  3. Click on the select button after entering the code.
  4. Your thermostat is unlocked.

How to unlock the old Honeywell thermostat Series?

To unlock the old Honeywell thermostat follow the instructions given step by step:

  1. Click on the ‘system’ and ‘auto’ both options down simultaneously on the screen.
  2. In the bottom center of the keyboard, there is a blank key click and hold it until the display changes.
  3. Modify the digits on the left side to ‘0670’, by the use of the up and down keys in the center of the screen.
  4. On the right-hand side modify the digit to 0 with the help of the up/down keys.
  5. Now, click on ‘done’ to complete the unlock.

How to unlock the T6 pro series of Honeywell thermostats?

For unlocking the keypad of the T6 pro smart thermostat you must follow these instructions given step by step:

  1. Click on the lock option on the display and then type the code.
  2. Then click on the keys +/- for modifying the individual digits on the screen.
  3. Next, to confirm the digits click on ‘select’.
  4. Until you fill all four digits in correct order keep repeating steps 2 and 3.
  5. After doing this the device will get unlocked and you can access all the settings now.

How to unlock the Honeywell thermostat 8000 series?

To unlock the old Honeywell thermostat follow the instructions given step by step:

  1. Click on the ‘system’ and ‘auto’ both options down simultaneously on the screen.
  2. In the bottom center of the keyboard, there is a blank key click and hold it until the display changes.
  3. Modify the digits on the left side to ‘0670’, by the use of the up and down keys in the center of the screen.
  4. On the right-hand side modify the digit to 0 with the help of the up/down keys.
  5. Now, click on ‘done’ to complete the unlock.

How to Unlock Honeywell Thermostat without the password?

If you have lost your thermostat password, don’t worry. There is an easy solution to this. 

  • By default, the password for all Honeywell thermostats is 1234. Try to unlock using this password.
  • If the system refuses to accept the password, remove the thermostat from the wall and make a note of the 4-digit code marked on the back of the thermostat.
  • Simply add the code to 1234 and the result will be your new password. For example, if the code is 1276, your new password is 1276+1234 = 2510.
  • Unlock using the new password. 

How To Check Your Honeywell Thermostat Model?

It’s a good practice to know your thermostat model number in case you need to reset it due to any unexpected error while unlocking it. 

If you still have the original packaging of the item, you can check the model number and name on it. Otherwise, carefully detach the thermostat off the wall and you will find the model number on the wall plate. Make a note of it. 

How to Reset Honeywell Thermostat?

In case you are unable to unlock your thermostat, you can reset it to factory settings easily. You can also attempt the reset in the following circumstances:

  • Wrong temperature readings
  • Unusually high electricity consumption
  • Trouble with operating your thermostat
  • Difficulties in connecting your air conditioner or Furnace

To reset, simply take the following steps:

  • Switch off the thermostat using the power key and remove the batteries.
  • Insert the batteries the opposite way and wait for 10-20 seconds.
  • Put the batteries in the correct way and turn off the thermostat.

Your thermostat will be reset to the default settings. 

FAQs

What is the default code for the Honeywell thermostat?

The default code for the Honeywell thermostat is 1234.

How do you bypass a locked Honeywell thermostat?

In the bottom center of the keyboard, there is a blank key click and hold it until the display changes. Modify the digits on the left side to ‘0670’, by the use of the up and down keys in the center of the screen. On the right-hand side modify the digit to 0 with the help of the up/down keys. Now, click on ‘done’ to complete the unlock.

How do you unlock a locked thermostat?

Click the up/down buttons to modify each digit by the use of the next button to cycle by which digit is flashing. Click and hold the next button for at least 5 seconds. It will return to the normal run screen.

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