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Common reasons your garage door opener may not be working properly: The batteries in the remote control need to be replaced. The door needs lubrication. The safety sensors are out of alignment. The track is not aligned properly. The garage door’s path may be blocked. The springs are broken.
Whether you have a belt drive, chain drive or wall-mount model, find helpful resources for your LiftMaster garage door opener and parts – manuals, videos and more – to help you diagnose and fix the problem.
Here are some additional tips to consider when troubleshooting your LiftMaster garage door opener: Check the Power Source: Sometimes, issues can be as simple as a tripped breaker. Ensure that your opener has a stable power source. Inspect the Garage Door Springs: Broken or worn springs can interfere with door movement.
When your Liftmaster garage door opener opens and closes by itself, here are the troubleshooting tips you need to follow. Disconnect the control station: Remove the bell wire from the single button control station’s terminals, and operate the garage door opener from the remotes.
This video demonstrates what to do if your garage door won't close and the lights on your LiftMaster garage door opener are blinking. ...more.
If you are looking troubleshoot your Liftmaster garage door opener, however, we have a dedicated guide that discusses all of the common problems with Liftmaster openers and ways to troubleshoot them. I recommend you check it out.
When you see your garage door opener lights flashing and the garage door will not close, it could be the safety reversing sensors or the LOCK button.; If there is a safety reversing sensor issue, the main light (s) flash 10 times. Start with aligning the safety sensors.