Why is the Garage Door Opener Beeping

If your Chamberlain garage door opener is beeping, it's trying to tell you something. Some models with battery backup or Wi-Fi connectivity use beeps to confirm actions or alert you to issues. The number of beeps can vary depending on the type of garage door opener and what it's doing.

Garage Door Opener with a Battery Backup

• Beeping every 2 seconds:
  • This means the unit is operating under battery power. The battery LED will display a solid orange light.
    • Check if the power in your home is back on. 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.
  • 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 in and the beeping will stop. For more information on replacing the battery, see Chamberlain Battery Replacement Instructions.
 

Important Information about the Backup Battery

• A fully charged battery is designed to provide the operator with 24 hours of standby time during which the opener can run up to 20 full cycles at room temperature. 
• 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.
• To order an internal battery replacement, visit our Parts Center.

Garage Door Opener without a Backup Battery

If your garage door opener does not have a battery backup option, something else is causing the beeping. If you have an 888LM, 889LM, or myQ Garage installed, the following could be the source of the beeping:

• Why the myQ Garage or myQ Smart Garage Hub will continually beep
• LiftMaster Model 888LM myQ Control Panel Instructions
• LiftMaster Model 889LM myQ Control Panel Instructions

If you do not have an 888LM, 889LM, or myQ garage installed, other sources of the beeping could be a smoke alarm, Carbon monoxide alarm, water softener, or another warning device in close proximity that can beep when it has a low battery.
 

If Your Garage Door Opener Has Security+2.0

• One beep: You'll hear this when setting up the door's limits or force settings, or when pressing the UP and DOWN arrows.
• Constant beeping: This means the door is closing on its own.
• Beeping before closing: If your garage door opener has a timer-to-close feature, it will beep for eight seconds before the door closes and will keep beeping until the door is fully closed.

• New Obstruction Notifications (as of November 15, 2020)
  Security+ 2.0 garage door openers now notify you if the door hits something while opening or closing:

  • When opening: If the door hits an object, it will stop, the opener will beep, and the lights will flash five times.

  • When closing: If the door hits an object, it will reverse, the opener will beep, and the lights will flash five times.

  Note: If your garage door opener is connected to Wi-Fi, it will automatically update to include these notifications. If it's not Wi-Fi-enabled but still under warranty, you can replace the logic board to get these features.

If Your Garage Door Opener Has Wi-Fi

In addition to the beeps heard from the Security+2.0 garage door openers, Wi-Fi Garage Door Openers will also beep under the following conditions:

• 1 beep: When the garage door opener is placed into Wi-Fi Mode.
• 1 continuous beep: While in Wi-Fi mode, the garage door opener is attempting to connect to the router. 
• 2 beeps: While in Wi-Fi mode, the garage door opener is attempting to connect to the myQ Server.
• 3 slow beeps: While in Wi-Fi mode, the garage door opener connects to the network.
• 3 fast beeps: Confirmation the Wi-Fi settings were erased from the garage door opener.
• 1 continuous beep followed by 3 fast beeps: The garage door opener failed to connect to the router due to an issue with the Wi-Fi password. The blue LED turns off. Verify the Wi-Fi password is correct and using a compatible encryption from our Recommended Router Settings for the myQ Wi-Fi Products.
• No beeps: The Wi-Fi turns off after 20 minutes or the garage door opener fails to connect to the router. The blue led turns off.

For more help, see: What the different color LEDs on a garage door opener mean