Why Is My LiftMaster Garage Door Opener Beeping?

Last Updated on March 7, 2021 by

A LiftMaster garage door opener is a worthwhile home improvement gadget designed to secure your garage and make work easier. The lift master door opener has safety features that might affect how it functions normally, and beeping is one such feature. Your door opener may be beeping due to several reasons which we shall look at in this post.

The most common reason why your LiftMaster door opener beeps is if you are using the timer-to-close feature or my technology to close your door. The opener will beep, and lights will flash to warn you that the door is about to close. This security feature is important, especially when you are operating the door opener remotely. Whoever is in the vicinity of your garage will expect the door to close and stay at a safe distance to prevent accidents.

 Secondly, if you have a battery backup garage opener, it might beep when it switches to operating on battery power. If this happens, you should see a solid orange LED light that indicates you are using a battery. If the battery runs low, your door opener will beep to indicate a low battery, but this time the LED light will be flashing.

How Do You Stop A Garage Door Opener From Beeping?

If your door opener is beeping to warn you when the door is closing, it will stop beeping when the door closes. If the door closes and your opener is still beeping with a flashing light, you need to replace your battery. You can stop the beeping temporarily before a battery replacement by unplugging the unit and disconnecting from battery then plug it in again.

How To Change Battery In A LiftMaster Garage Door Opener

It would be best if you replaced your backup battery every two years, but when its time for replacement, the opener will beep, and LED light will turn red to indicate. Let’s take you through the battery replacement process to help you do it safely and correctly. When working around the battery compartment, ensure you wear gloves and eye protection.

First, you need to unplug your door opener from the socket and open the light lens on the garage door opener to access the battery compartment. Unscrew the battery compartment cover and hold the battery up. Disconnect the red and black wires from battery’s terminal and connect them to the new battery. Ensure the red wire is connected to the red terminal and the black wire to the black terminal. Insert the battery to the compartment and replace the compartment cover, ensuring the battery wires are not pinched. 

Plugin your garage door opener and check the battery LED light to ensure its green. When the battery is fully charged, the green light will stop blinking; it takes about 24hours to reach full charge. To test the battery, unplug your door opener and activate it using the door control or remote control. If it is not fully charged, the door opener may run a bit slower, and the LED light will flash orange. If the battery is charged, the LED should glow a solid orange to indicate that it is running on battery. After the test, plug in your opener to the socket, and installation is now complete. You should now enjoy your Lift master door opener without those annoying beeping sounds.

Garage Door Opener Troubleshooting: How To Fix Common Issues

LiftMaster garage door openers are popular, and sometimes we encounter common problems when using them. In this section, we discuss how to fix these small issues.

The most common problems with garage door openers are:

1. Garage door reversing when opening or closing

2. Garage door not opening fully

3. Wireless keyless entry not working

4. Remote control not working

5. Garage door opener not working

Let’s look at these issues in detail as we teach you how to troubleshoot each problem.

1. Garage Door Reversing When Opening Or Closing

If your garage door reverses when you open or close, it is either because there’s an obstruction at the doorway or the sensor is not working. Incorrect settings could also cause your door to reverse. For most people, the sensor is what causes the reversing issue, so it would help if you check it first.

LiftMaster garage door openers are designed with safety sensors that prevent damage to anything or injury to someone who might be on the entryway. If the sensor is obstructed, the door cannot close. To troubleshoot the sensor:

1. Check if something is blocking the sensors and remove any hindrances

2. Confirm that the sensors are properly aligned. If the LED light on your sensors are flickering or turned off, it’s an indication that sensors are misaligned

3. To align sensors, loosen the nut and adjust the position of the sensor until a green light turns on, then tighten the nut to hold the sensor in place. Test your door using a remote or door control.

Another reason why your door could be reversing is incorrect settings on the travel limit. If your door closes and touches the ground then goes back up, you might have incorrect settings. Travel limits are the distance your garage door needs to travel to close or open completely. When you set the limit to exceed actual distance, your door will assume there’s an obstruction and go back. To decrease travel limit, you need to:

3. Step on a ladder and locate the travel limit dials denoted by a garage door with an arrow

4. Use a screwdriver to reduce travel limit by turning the dial in the opposite direction. One full turn will reduce travel limit by 2 inches. Keep testing your garage door to fine-tune the setting until your door closes without reversing.

  1.  Garage door not opening fully

To protect motor from damage, Lift master door openers are designed to stop in case of any obstruction. When your door stops opening fully, check the tracks, rollers, and jambs for and sticking or binding points, and call a technician to fix them.

If rollers and tracks are in excellent condition, adjust force settings to give the garage more energy to open and close. To adjust force settings, you need to:

  • Locate blue dials at the back of your door opener and slightly increase the opening force
  • Try opening the door with remote control and keep adjusting if it doesn’t open fully. If your door opens up to 60 inches, you might need to adjust travel limit.
  1. Wireless keyless entry not working

Wondering why your remote and door controls are working but wireless key entry is not working? I could be that your battery has run low, and you need a replacement. Begin by changing the battery and entering your pin and pressing the enter button. If that doesn’t work, you can reprogram your door opener. See your manual for model-specific programming instructions, then try to see if it works. After changing your battery, ensure you dispose of the old one safely.

  1. Remote control not working

There are several reasons why your remote control might not be working. First, some door openers have a lock feature, which, when activated, prevents remote from working. Depending on your model, either the LCD will display lock activated, or light on the push button will flash. If lock is on, turn it off by holding lock button for two seconds or pressing menu button. If lock is off, try replacing battery of your remote control. A good battery typically lasts for three years; after replacing battery, test your remote to see if it works. If it still doesn’t work, try reprogramming your remote. If, after reprogramming, the remote still doesn’t work, try a different remote, and if it works, you might need to replace your remote. In rare cases where both remotes don’t work, you may need to change your door openers receiver board.

  1. Garage door opener not working

If your garage door opener isn’t working by both remote and door control, you need to check for faults, locks, or if the door is frozen. Some garage doors have automatic locks that need to be disabled for your door opener to function. If your door isn’t locked, check if your door opener has a power supply and ensure the circuit isn’t broken. You should also confirm that the door spring is working since it helps your door opener with lifting. During winter, your door might be held down by ice. A frozen door can not open, and you, therefore, need to remove the ice before opening your door.


LiftMaster garage door openers improve our homes by making work easier and securing our property. Always ensure you read your manual to understand your specific model and know how to troubleshoot each issue. If your issue persists after trying all methods, consult a technician or check LiftMaster’s website for further insight.


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