This video demonstrates what to do if your LiftMaster garage door won't fully open. LiftMaster garage door openers are designed to stop if it senses resistance or an obstruction while opening. They are also designed to stop and reverse after coming in contact with an obstruction. When this happens, the operator will beep and the lights will flash slowly five (5) times. The 5 beeps and flashes Obstruction Notification feature is enabled if your garage door opener is a newer model or if the firmware has been updated.

0:00 Why won't my garage door fully open?
0:22 Disconnect the garage door from the garage door opener
0:33 Check the garage door opener
0:56 Reconnect the garage door to the opener
1:15 Adjusting the open force on the garage door opener
1:29 Adjusting the travel limits on the garage door opener
1:36 Testing the Safety Reversal System
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To locate a trained, professional installer or service technician go to LiftMaster.com/locate-a-dealer.

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This video is intended for demonstration purposes only. The procedures demonstrated should only be performed by trained, professional installers and service technicians. Safe operation and servicing requires that you follow all instructions and safety advisories found in the manual.

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