How to open garage door with no power?

How to open garage door with no power?


Opening a garage door without power can be a challenging task, especially if you’re used to relying on an automatic opener. However, there are several methods you can use to manually open your garage door when there is no power available. In this article, we will explore different techniques and tools that can help you open your garage door in such situations.

Using the Emergency Release Cord

Materials needed: Emergency release cord, ladder (if necessary)

One of the most common and straightforward methods to open a garage door without power is by using the emergency release cord. This cord is usually located near the top of the garage door opener unit. Here’s how you can use it:

1. Locate the emergency release cord: Look for a red cord or handle hanging from the garage door opener unit. It is typically connected to a spring-loaded lever.

2. Pull down the emergency release cord: Firmly grip the cord or handle and pull it straight down. This action will disengage the garage door from the opener mechanism.

3. Manually lift the garage door: Once the emergency release cord is pulled, you can manually lift the garage door. Keep in mind that garage doors can be heavy, so you may need assistance or a ladder to reach the necessary height.

4. Secure the garage door: Once the door is open, you can use a clamp or a piece of wood to keep it in the open position, ensuring it doesn’t accidentally close.

Using a Trolley Disconnect

Materials needed: Trolley disconnect tool, ladder (if necessary)

If your garage door opener doesn’t have an emergency release cord or if it’s not easily accessible, you can try using a trolley disconnect tool. Here’s how to do it:

1. Locate the trolley carriage: The trolley carriage is the part of the opener that connects to the garage door. It moves along the opener’s rail system. Find the point where the trolley carriage is attached to the garage door.

2. Disconnect the trolley carriage: Insert the trolley disconnect tool into the gap between the trolley carriage and the opener’s rail system. Apply pressure to release the carriage from the opener.

3. Manually lift the garage door: Once the trolley carriage is disconnected, you can manually lift the garage door. Remember to take necessary safety precautions and use a ladder if needed.

4. Secure the garage door: After opening the door, use a clamp or a piece of wood to prevent it from closing accidentally.

Using a Power Backup System

Materials needed: Power backup system compatible with your garage door opener

If you frequently experience power outages and want a reliable solution to open your garage door during such situations, you can consider installing a power backup system. These systems provide a temporary power source to your garage door opener. Here’s what you need to do:

1. Choose a compatible power backup system: Research and select a power backup system that is compatible with your garage door opener model. Consult the manufacturer’s guidelines or seek professional advice if necessary.

2. Install the power backup system: Follow the installation instructions provided with the power backup system. This typically involves connecting the backup system to your garage door opener and ensuring it is properly set up.

3. Test the backup system: Once installed, test the power backup system to ensure it functions correctly. Practice opening and closing your garage door using the backup power source to familiarize yourself with the process.


Opening a garage door without power is possible using various methods. The emergency release cord and trolley disconnect tools allow for manual operation of the door, while a power backup system provides a reliable solution during power outages. Remember to prioritize safety when manually opening a garage door and seek professional assistance if needed.


– Chamberlain: How to Use the Emergency Release Cord on a Garage Door Opener –
– LiftMaster: How to Manually Open Your Garage Door –
– The Home Depot: How to Open Your Garage Door Manually During a Power Outage –