Now try opening the garage door once again with the remote control.
Garage door shuts then opens again.
If the garage door does not close completely or begins to close and then opens back up again the down limit switch needs.
A simple way to do this is to unplug the garage door opener and then plug in another device say your phone or a light bulb to see if it lights up.
There are four common problems with garage door sensors three of these homeowners can fix.
Your garage door opens immediately after closing.
Close the garage door with the opener and watch it closely as it closes.
The garage door goes down then back up.
This is almost always the result of a.
Repeat step 2 if the garage door still does not open fully.
Here s a rundown of some of the possible reasons this can be happening.
If it closes only partway the safety sensors are usually responsible clean the lenses or realign them and make sure there are no obstacles blocking the beam.
But one of the more perplexing issues is when the door goes up and down by itself with no help from you.
You need to check if the opener has electricity.
If your garage door won t open or close the problem could be a bent track a broken torsion spring or a bad capacitor int he motor housing.
Garage door opener keeps going back up.
Your garage door opens when it hits the ground.
If it closes before that distance.
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.
It may be your garage door sensor.
It goes partway down reverses direction and goes back up again.
Your travel down setting needs to be adjusted.
It can seem quite ghostly having your garage door operate with a mind of its own.
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.
Your garage door is programmed to travel a certain distance before it closes.
How to fix a garage door that keeps reversing.
You push the button to close the garage door.