This requires a simple turn with a screwdriver to reset the limit so the garage door opens and closes all.
Garage door is opeing about six inches and stopping.
The garage door can be operated manually by disconnecting the garage door opener from the door using the red pull cord.
Liftmaster provides a helpful resource that explains how to adjust a limit switch.
These limits set the distance the door will open or close before stopping.
If it senses resistance stops.
Often as a garage door ages its moving parts don t slip and slide as freely as they did when the unit was new.
Quite often the cause of your door s malfunction is an improperly set garage door limit.
Garage door only travels a little way and then reverses does your garage door only travel a little way 6 inches or so and then reverse.
Try to operate the garage door manually.
There is nothing in the way and the sensors are working properly the door works fine by itself manually and the motor works perfectly without the door.
I have a craftsman 1 2 hp garage door opener from 1997 on one of my garage doors.
This is a built in safety feature that is there in the event that something or someone gets in the way of the door.
Recently it will only open the door 6 inches then stop.
It sounds like the limit settings need adjusting.
Once i get the door up it will go down half way then stop and i have to do through the same process to get it down.
If your garage door isn t staying open or staying closed you may need to adjust your limit switch which requires only a flathead screwdriver.
If the door is working properly it should be easy to lift by hand.
This can often be due to a problem with the tracks or rollers.
Your garage door seems to get stuck while opening or closing.
However when connected the door only opens.
The likely reason your door is stopping is because it is sensing resistance.