Pull the emergency release handle down and back towards the garage door opener.
Liftmaster garage door opener goes down then back up.
Also try unplugging the garage door opener and re plugging the unit back into the outlet.
The garage door will automatically go in reverse.
To fix this issue and get your liftmaster garage door opener working again follow these troubleshooting steps.
There are four common problems with garage door sensors three of these homeowners can fix.
Set a safety ladder under the garage door opener.
To try and correct the problem make sure the eyes on the sensors are clean the wire connections are securely fastened at the sensors and motor head and the eyes are directed at each other.
This acts as a reset and may reset the sensors.
Your travel down setting needs to be adjusted.
Automatic garage door openers are prone to a variety of problems most of which are fairly easy to fix with routine troubleshooting and maintenance.
It may be your garage door sensor.
As is the case with so many issues at the home there s no one reason why your garage door closes then opens.
Possible reasons why your garage door hits the floor then goes back up.
Locate the limit switch adjustment either on the back of the opener or behind the light bulb s lens cover.
Turn the down limit switch screw clockwise one turn with a flat blade screwdriver if the garage door closes and then begins to open back up.
It can seem quite ghostly having your garage door operate with a mind of its own.
If you re craftsman chamberlain etc garage door opener is closing and then opening up its likely a common problem related to the stop limit mechanism.
Close the door with either the door control or the remote control.
Garage door opener keeps going back up.
Here s a rundown of some of the possible reasons this can be happening.
The garage door keeps going up and down.
The garage door goes down then back up.
But one of the more perplexing issues is when the door goes up and down by itself with no help from you.
Your garage door opens immediately after closing.