Premium LiftMaster garage door openers featuring a battery backup and/or Wi-Fi connectivity have a buzzer to alert you by making a beeping sound. You will hear a beep to confirm a step is performed successfully or you will hear a beep to diagnose an issue. The number of beeps heard will depend on the type of garage door opener and the function you are performing on the garage door opener.
If you have a garage door opener with a battery backup and it is…
- Beeping every 2 seconds
- This means the unit is operating under battery power. The battery LED will display solid orange.
- Ensure the power is restored throughout the house. If power is restored but the LED is still orange, then test the electrical outlet by plugging in a different device.
- Beeping every 30 seconds
- If the battery LED is flashing orange it means the battery is low.
- Test the electrical outlet by plugging in a different device. If there is power and the LED does not change to a flashing green, then replace the battery.
- Beeping every 30 seconds
- If the battery LED is solid red, then the battery is dead and cannot recharge.
- Replace the battery.
Note: To temporarily stop the beeping while waiting on a new battery, unplug the unit and disconnect the battery. After disconnecting the battery, plug the unit back and the beeping will stop.
Useful information about the backup battery
The battery is designed to run 20 full cycles on a full charge, which equates to about 1 -2 days of normal operation. If the power is not restored by this time, the battery needs to be unplugged from the motor. If you do not disconnect the battery, it will drain too low and will not recharge. The battery would then need to be replaced.
- It is a 12-volt rechargeable battery with 4.5 AH (amp hours).
- The weight of the battery is 4.5 lbs.
- The backup battery is an accessory and has a one-year warranty from the date of purchase.
If your garage door opener has Sec+2.0
- You will hear 1 beep when the garage door opener is placed into limit and force Learn mode. You will also hear 1 beep when pressing the up and down arrows.
- Constant beeping indicates the door is closing unattendedly.
- Garage door openers using a timer-to-close control panel will beep for 8 seconds before an open garage door closes. It will continue to beep until the door is closed.
If your garage door opener has Wi-Fi
In addition to the beeps heard from the Sec+2.0 garage door openers, the Wi-Fi Garage Door Opener will also beep under the following condition:
- 1 beep: When GDO is placed into Wi-Fi Mode
- 1 continuous beep: While in Wi-Fi mode, the GDO is attempting to connect to router
- 2 beeps: While in Wi-Fi mode, the GDO is attempting to connect to MyQ Server
- 3 slow beeps: While in Wi-Fi mode, the GDO connects to network
- 6 fast beeps: While in Wi-Fi mode, the GDO fails to connect to server
- 3 fast beeps: Confirmation of Erase of Wi-Fi from GDO