Though this problem should be obvious it shouldn t be overlooked.
Garage door is not closing all the way.
This is probably the most common culprit when a garage door won t close all the way.
7 reasons for your garage door not closing all the way 1.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
Garage door will not close all the way leaves gap at bottom 1.
There are two sensors that sit near the bottom of the garage door just about an inch from the ground.
If you re in the habit of leaving the garage door open a variety of things including.
Garage door seal may be damaged 4.
If the door goes up but you can t make it go down you probably need to adjust the sensors.
How to fix a garage door that won t go all the way down safety sensors.
Garage door sensors may not be aligned correctly 3.
Garage floor may have cracked or shifted 2.
Garage door opener malfunction or door has shifted.
First and perhaps most commonly your safety sensors could be working improperly.
First check the sensor lights.
Something blocking the door.
Disengage the garage door.
You may not have even noticed it before but the main garage door opener unit will be plugged into an electrical outlet that is located on the garage ceiling near the unit.