If you ve checked for obstructions and made sure the lock button wasn t switched to the on position and still your garage door opener won t open all the way check to see if your garage door is balanced properly.
Garage door won t open all the way liftmaster.
Liftmaster uses the protector system which projects an invisible light beam across the door opening and automatically opens the door if something someone crosses it s path.
If your liftmaster garage door is stuck and won t open it is possible to troubleshoot it in a variety of ways.
Check power door lock the power door lock must be deactivated anytime you open the garage door.
This feature prevents the motor inside the garage door opener from damaging.
If the door is in good working order but still will not open all the way increase the up force.
If your garage door is not balanced right it won t go up or down all the way.
Doors can get stuck due to problems with their power source photo eyes and track alignment among other things.
To test for balance open your door s emergency release handle and open and.
Your garage door opener is designed to stop.
If the door opens at least 5 feet you may need to increase your travel limits.
My garage door won t open all the way liftmaster 8160w 8160wb 8164w 8165w 8155w owner s manual contractor series wi fi garage door opener owner s manual for belt drive 8155w and chain drive 8160w 8160wb 8164w and 8065w.
Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening.
To test the balance and alignment of your door go to how to test the balance of a garage door.