To troubleshoot your liftmaster safety sensors.
Troubleshooting garage door not closing.
Click on a problem below to see the possible causes and solutions.
There are of course many other problems that can keep your garage door from functioning properly.
In the case that the door responds to the switch then there s a good chance it s the remote that has an issue.
The problem is either due to a blocked path between the sensors dirty eyes loose wires at the sensors or at the motor head or just bad sensors.
Let s start with the most obvious sign your garage door doesn t close properly.
The transmitters remotes will not work to close the garage door.
Try replacing the batteries in the remote and trying again.
Here are the 4 reasons why you are having issues with your garage door not closing all the way.
The good news is this can be easily adjusted with a screwdriver and a few.
To manually unlock your garage door simply turn the handle until you hear a clicking sound.
Garage door won t close all the way.
When you re too far away then the door may not respond.
If that isn t the problem then try opening and closing the door with the wall switch.
If the garage door opens correctly but fails to close completely there may be one of three common causes.
When the safety sensor is not properly aligned or something is obstructing the light beam the garage door will fail to close.
You will find that the door will only move an inch or so in the close direction and reverse.
Check if something is blocking the way of the safety sensor.
When the settings are too high the door senses the floor as an obstruction and immediately opens again after closing.
Garage doors have tension springs and cables that help to slowly and safely lower your door while closing.
We create the 4 most common problems as well as show you the.
Most likely this will resolve the situation.
One of the more difficult problems for do it yourselfers to diagnose is a worn cable pulley on an extension spring door.
The liftmaster garage door opener lights will flash for ten times.
Eliminate any item in between the sensors.
If you garage door is lowering then reversing.
Garage door reversing before closing garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.
This is a common garage door safety feature that prevents injury and damage to personal belongings.
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.