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.
Garage door keeps opening back up.
Here s a rundown of some of the possible reasons this can be happening.
Your travel down setting needs to be adjusted.
For series ii wall console you can remove the wires from the back of the wall console and touch them together to see if the garage door moves.
Check for reversed broken or cut wires.
In rare instances a nearby neighbor may have a garage door opener set to the same wireless.
Another easy way to fix a garage door that opens by itself is by checking the remote opener.
Most likely this will resolve the situation.
Check the remote opener.
To troubleshoot the garage door opener button make sure it s clean and free of debris.
Try replacing the batteries in the remote and trying again.
Lubricating the springs hinges and other metal parts can help your door to move easily.
This will cause the door to open and close until the button becomes unstuck.
It goes partway down reverses direction and goes back up again.
Another reason that your garage door won t open all the way in cold weather is probably that the metal has contracted.
Your garage door sensor works by having two photo sensitive devices on either side of the garage door.
Replace the wiring if needed with garage door opener wiring.
The button can easily get dirty and stuck in the pushed position.
If these can t see each other when the door is almost shut it will send a signal to the garage door motor to open back up.
If this is the reason your garage door is not functioning properly the lubricant must be applied.
If that isn t the problem then try opening and closing the door with the wall switch.
In cold temperature the space between molecules reduces making the metal shrinks.
Possible reasons why your garage door hits the floor then goes back up as is the case with so many issues at the home there s no one reason why your garage door closes then opens.
In the case that the door responds to the switch then there s a good chance it s the remote that has an issue.
If the remote opener is dirty or the batteries are failing it may cause the door to open on its own.
You push the button to close the garage door.
This is almost always the result of a dirty or obstructed safety feature.
Staples can cut insulation and short out the wires.
A careless or rushed parking job can cause the car s bumper to block the sensor.
What to do when your garage door opens and closes by itself check with your neighbors.
Inspect the control wiring.
An exposed spot or a short circuit in the small gauge wire that leads from the garage.