In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Garage door opens immediately after closing.
If the door closes while holding the button pressed you are likely having one of the following issues with your safety sensors.
In rare instances a nearby neighbor may have a garage door opener set to the same wireless.
Close the garage door with the opener and watch it closely as it closes.
The sensors are dirty wipe lenses with a clean soft cloth.
If the garage door opens correctly but fails to close completely there may be one of three common causes.
Possible reasons why your garage door hits the floor then goes back up.
A force sensitive switch that detects if the motor torque is excessive typically tripped by incorrect adjustment or by.
An exposed spot or a short circuit in the small gauge wire that leads from the garage.
Remove the bell wire from the single button control station s terminals and operate the garage door opener from the remotes.
Your travel down setting needs to be adjusted.
Disconnect the control station.
They are misaligned this is the most likely problem and the most common issue with garage door openers.
This is almost always the result of a dirty or obstructed safety feature.
At the bottom of your door there s a small infrared sensor.
The solution is usually one or more of the following.
When your liftmaster garage door opener opens and closes by itself here are the troubleshooting tips you need to follow.
It passes a beam a few inches off the floor from side to side.
Your garage door has set limit switches that instruct the motor when to stop running both when it is opening and when it is closing.
The close limit switch may need adjusting.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Here s a rundown of some of the possible reasons this can be happening.
What to do when your garage door opens and closes by itself check with your neighbors.
My garage door has two sensors either of which can cause the door to open immediately after apparently closing.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.