How to Change the Battery in Your LiftMaster 373LM Garage Door Opener

Is your LiftMaster 373LM garage door opener remote not working? The most common cause is a dead battery. Fortunately, replacing it is a simple task you can do yourself with just a few tools. This guide will walk you through the process.

What You’ll Need:

• A CR2032 battery. This is the standard 3V lithium coin cell battery required for the LiftMaster 373LM remote. You can find these at most drug stores, supermarkets, and electronics stores.
• A flathead screwdriver (recommended, but not always necessary).

Steps:

1. Remove the Clip: On the back of the remote, you’ll find a clip. Gently remove it. This may require using the flathead screwdriver to pry it loose.
2. Open the Casing: Carefully insert the flathead screwdriver into the seam of the remote casing and gently pry it open. If you don’t have a screwdriver, you might be able to use your fingernails, but be careful not to damage the plastic.
3. Remove the Old Battery: Once the casing is open, you’ll see the old CR2032 battery. Take it out.
4. Insert the New Battery: Place the new CR2032 battery into the compartment, making sure the positive (+) side is facing up.
5. Reassemble the Remote: Align the buttons on the remote and carefully snap the two halves of the casing back together.
6. Replace the Clip: Slide the clip back into its place on the back of the remote.

That’s it! Your LiftMaster 373LM remote should now be working. No reprogramming is needed.

Testing Your 373LM Remote

After reassembling the Garage Opener, it’s important to test it to ensure everything works correctly. Follow these steps:

1. Stand near your Garage door.
2. Press the buttons on the remote to check if it opens and close.

If the remote functions properly, you’ve successfully replaced the battery.

Tips for Prolonging Battery Life

To extend the life of your garage door opener battery, consider these tips:

• Avoid exposing the remote to extreme temperatures.
• Keep the remote away from moisture.
• Use the remote regularly to prevent battery drain.

Following these tips can help you get the most out of your 373LM battery.

Conclusion

Replacing the battery for your LiftMaster garage door opener remote is a straightforward process that can be done in minutes. By following the steps outlined in this guide, you can save time and avoid the hassle of a dead garage door remote. Remember to handle the remote components with care and ensure the battery is correctly oriented. With a new CR2032 battery in place, your remote should be as good as new.

Frequently Asked Questions

What type of battery does the LiftMaster 373LM use?

The LiftMaster 373LM uses a CR2032 coin battery.

How often should I replace the LiftMaster remote battery?

It’s recommended to replace the remote battery every 1-2 years, depending on usage.

Can I use a different type of battery?

No, it’s essential to use a CR2032 battery to ensure compatibility.

What should I do if the remote doesn’t work after replacing the battery?

Ensure the battery is correctly oriented and the remote is properly reassembled. If issues persist, consult a professional.

Is it safe to replace the remote battery myself?

Yes, replacing the remote battery is safe and straightforward if you follow the steps carefully.

Do I need any special tools to replace the remote battery?

A flat-head screwdriver or the remote clip can be helpful but are not always necessary.

Can I replace the remote battery without a flat-head screwdriver?

Yes, you can use the clip that comes with it to pry open the remote if you don’t have a flat-head screwdriver.

Where can I purchase a CR2032 battery?

You can purchase a CR2032 battery online or at most electronics stores.