How to Change Battery in Honeywell Proseries Thermostat: A Step-by-Step Guide

How to Change Battery in Honeywell Proseries Thermostat?

To change the battery in a Honeywell Proseries Thermostat, start by removing the faceplate.

Then, replace the old batteries with new ones of the correct size.

Reattach the faceplate, and the thermostat display should turn back on.

If you need to reset a lost passcode, remove the thermostat from the base plate and add a four-digit date code on the back.

If you encounter any issues, consider contacting professionals for help.

Key Points:

  • Contact Honeywell customer support for further assistance

Did You Know?

1. In order to change the battery in a Honeywell Proseries thermostat, you typically need to remove the thermostat’s faceplate. However, it is important to note that not all models have removable faceplates, so it’s essential to consult the specific user manual for your model before attempting to change the battery.

2. Did you know that most Honeywell Proseries thermostats utilize alkaline batteries? These types of batteries are known for their long-lasting power and are easily available at most stores.

3. If you’re wondering how often you need to change the battery in your Honeywell Proseries thermostat, it largely depends on the type of batteries you use and the frequency of usage. On average, though, it is recommended to change the thermostat battery every 6 to 12 months to ensure optimal performance.

4. Some newer models of the Honeywell Proseries thermostat come equipped with a low-battery indicator. This feature notifies you when the battery is running low, so you can replace it in a timely manner and avoid any potential thermostat malfunctions.

5. Honeywell Proseries thermostats are designed to retain your programmed settings and schedules even when the battery is replaced. This means you won’t have to reprogram your thermostat every time you change the battery, making the process more convenient for users.

1. Reverse Order Battery Reset

The first step in changing the battery in your Honeywell Proseries Thermostat is to perform a reverse order battery reset. By removing and reinserting the batteries in reverse order, you can effectively reset the thermostat. This is particularly useful if you are experiencing any issues with the functioning of your thermostat.

To perform a reverse order battery reset, locate the battery compartment on the back of the thermostat. This is usually located at the bottom of the device. Open the battery compartment and remove the batteries. Take note of their orientation as you remove them.

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Now, reinsert the batteries in the reverse order, ensuring that their orientation is opposite to how they were originally installed. Doing this will effectively reset the thermostat, and you should see the display turn off and then back on again.

2. Resetting Hardwired Thermostats

For hardwired thermostats like the Honeywell Proseries Thermostat, the process of resetting is slightly different. To reset a hardwired thermostat, it is recommended to consult the user manual or reach out to Honeywell customer support for specific instructions.Remember to use a different resource to reset it.

3. Removing The Faceplate For Battery Replacement

To replace the batteries in your Honeywell Proseries Thermostat, follow these steps:

  1. Remove the faceplate: Gently pull the faceplate away from the base of the thermostat. Apply even pressure on both sides and pull it straight outwards. Avoid exerting too much force to prevent damage.

  2. Reveal the battery compartment: As you remove the faceplate, the battery compartment will be exposed.

Remember to handle the device with care when removing the faceplate and replacing the batteries.

  • Note: Be cautious not to damage the internal components.
  • Caution: Avoid applying excessive force.
  • Reminder: Handle the device gently.

“Exert caution when removing the faceplate to avoid damaging the device.”

I hope this helps!

4. Choosing The Correct Size Batteries

When replacing batteries for your Honeywell Proseries Thermostat, it is crucial to use the correct size. Using the wrong size batteries can result in reduced battery life or potential damage to the thermostat.

To determine the appropriate battery size for your thermostat model, you can check the battery compartment or refer to the user manual. While most Honeywell Proseries Thermostats typically require AA or AAA batteries, it is always recommended to verify the specific size.

Once you have determined the correct battery size, make sure to have a fresh set of batteries readily available.

Some key points to remember:

  • Using the wrong battery size can lead to reduced battery life or damage to the thermostat.
  • Check the battery compartment or refer to the user manual to identify the correct battery size for your thermostat model.
  • Honeywell Proseries Thermostats generally use AA or AAA batteries, but it’s important to confirm.
  • Ensure that you have fresh batteries of the appropriate size on hand.

5. Reattaching The Faceplate And Powering On

After replacing the old batteries with new ones of the correct size, it is time to reattach the faceplate and power on your Honeywell Proseries Thermostat.
1. Align the faceplate with the base of the thermostat.
2. Carefully push it back into place.
3. Make sure it is securely attached and sits flush against the base.

Once the faceplate is reattached, you should see the thermostat display turn back on. This indicates that the battery replacement was successful.
* Take note of any prompts or messages on the display, as they may require your attention for further setup or configuration.

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6. Unlocking The Thermostat With The Correct Passcode

To unlock your Honeywell Proseries Thermostat, follow these steps:

  1. Press the Center or Menu button on the thermostat.
  2. Enter the default passcode, which is usually 1234.
  3. Note that the default passcode may vary depending on your specific model.

After entering the passcode, you can set a new passcode of your choice. Keep in mind the following tips:

  • Choose a passcode that is easy for you to remember but difficult for others to guess.
  • Store your passcode in a secure place to avoid future challenges when resetting or reconfiguring your thermostat.

If you forget or lose your passcode, you need to reset the thermostat by removing it from its base plate. Follow these steps:

  1. Locate the release button or gently lift the thermostat off the base.
  2. Consult the user manual or contact Honeywell support for specific instructions on passcode reset or removal from the base plate.

Remember that changing the battery in a Honeywell Proseries Thermostat is a straightforward process. By following the above steps, you can ensure your thermostat functions optimally and efficiently. If you encounter difficulties or the troubleshooting steps don’t solve the issue, seek professional assistance to avoid potential damage to the thermostat or its components.

  • Press Center or Menu button on the thermostat.
  • Enter default passcode (usually 1234).
  • Choose a new passcode that is easy to remember but difficult to guess.
  • Store passcode in secure place.
  • If passcode is forgotten or lost, remove thermostat from base plate to reset.

    “Changing the battery in a Honeywell Proseries Thermostat is a relatively straightforward process.”


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Frequently Asked Questions

How to reset Honeywell home thermostat after changing batteries?

To reset a Honeywell home thermostat after changing batteries, first power off the thermostat and remove the batteries. Then, reinsert the batteries in the incorrect orientation, with negative to positive and positive to negative. After waiting for ten seconds, properly reinsert the batteries in the correct orientation. This process will reset the thermostat to its factory settings. Remember to reprogram your thermostat to your usual schedule afterwards.

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Where is battery in Honeywell thermostat?

To locate the battery compartment in your Honeywell thermostat, simply look for a button on the top side of the device. Once located, press the button and gently pull out the battery compartment. It is recommended to replace both batteries instead of relying on a single working one for optimal performance.

1. What steps should be followed to safely and effectively change the battery in a Honeywell Proseries thermostat?

To safely and effectively change the battery in a Honeywell Proseries thermostat, the following steps should be followed:

1. Turn off the power: Before starting any work on the thermostat, it is essential to turn off the power to the heating or cooling system. This can be done by switching off the circuit breaker or removing the fuse that supplies power to the thermostat.

2. Open the thermostat: Gently remove the thermostat cover by separating it from the base. Depending on the model, the cover may either snap off or require a screwdriver to remove any screws holding it in place.

3. Replace the battery: Locate the battery compartment inside the thermostat and remove the old batteries. Make sure to properly dispose of the old batteries. Then, insert the new batteries, following the correct polarity (+ and -) as indicated.

4. Reassemble and test: Put the thermostat cover back in place, ensuring it fits snugly. Restore power to the heating or cooling system by turning on the circuit breaker or replacing the fuse. Finally, test the thermostat by adjusting the temperature settings to ensure it is functioning properly.

By following these steps, you can safely and effectively change the battery in a Honeywell Proseries thermostat without encountering any issues.

2. Are there any specific battery requirements or recommendations for replacing the battery in a Honeywell Proseries thermostat?

To replace the battery in a Honeywell ProSeries thermostat, it is necessary to use 2 AA alkaline batteries. These specific batteries are recommended by Honeywell to ensure proper functioning of the thermostat. It is important to follow this requirement to prevent any potential issues with the performance of the thermostat and to ensure accurate temperature control and programming.

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