Liftmaster Garage Door Opener Not Working After Power Outage (How to Reset)

Experiencing a power outage can be a frustrating situation, especially when it affects the functionality of your Liftmaster garage door opener. If you’re currently facing this issue, don’t worry! In this comprehensive guide, we will walk you through the steps to reset your Liftmaster garage door opener not working after power outage. By following these simple instructions, you’ll be able to regain control and ensure your garage door operates smoothly once again.

Liftmaster Garage Door Opener Not Working After Power Outage

Understanding the Impact of Power Outages on Liftmaster Garage Door Openers

Power outages can disrupt the normal functioning of electronic devices, including garage door openers. When the power supply is abruptly cut off, your Liftmaster opener might encounter a temporary malfunction. This can result in the inability to open or close the garage door, leaving you perplexed. However, by following the correct reset procedures, you can resolve the issue promptly.

Steps to Reset Your Liftmaster Garage Door Opener

Resetting your Liftmaster garage door opener is a straightforward process that you can easily carry out. Follow these steps to restore its functionality after a power outage:

  1. Disconnect the power: Locate the power cord attached to your Liftmaster garage door opener motor. Unplug it from the power outlet to cut off the electricity supply.
  2. Wait for a few minutes: Allow a minimum of five minutes for the opener’s internal circuits to fully discharge and reset.
  3. Reconnect the power: Plug the power cord back into the outlet and ensure a secure connection.
  4. Test the opener: Press the remote control or wall button to check if the garage door responds correctly. It should open and close smoothly.
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Additional Troubleshooting Steps

If your Liftmaster garage door opener still doesn’t function properly after the initial reset, you can try the following troubleshooting steps:

  1. Check the breaker: Examine the circuit breaker or fuse box associated with your garage door opener. Ensure that the breaker hasn’t tripped or the fuse hasn’t blown. If necessary, reset the breaker or replace the fuse.
  2. Inspect the power source: Ensure that the outlet supplying power to the garage door opener is working correctly. You can test the outlet by plugging in another electronic device.
  3. Examine the motor unit: Inspect the motor unit of your Liftmaster garage door opener for any visible signs of damage or loose connections. Tighten any loose wires or screws if found.
  4. Reset the remote control: If the garage door opener responds inconsistently to the remote control, reset the remote by removing its batteries for a few minutes, then reinsert them.

Frequently Asked Questions (FAQs)

Will resetting the opener erase my existing programming?

No, resetting your Liftmaster garage door opener does not affect the existing programming or codes. It only resets the device’s internal circuits.

Can I use a different power source, such as a generator, during a power outage?

It is not recommended to use a generator as a power source for your Liftmaster garage door opener. Generators can produce inconsistent power and voltage fluctuations, which may damage the opener’s electronics.

What if my Liftmaster garage door opener still doesn’t work after following all the troubleshooting steps?

If your garage door opener continues to malfunction, it is advisable to contact a professional Liftmaster technician for further assistance.


Resetting your Liftmaster garage door opener not working after power outage is a simple process that can be completed within minutes. By following the step-by-step instructions provided in this guide, you can quickly regain control of your garage door’s functionality. Remember to troubleshoot further if the initial reset doesn’t solve the problem, and consider seeking professional assistance if necessary. With these tips, you can overcome the inconvenience caused by power outages and ensure your Liftmaster garage door opener operates smoothly.


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