Examine the garage door s safety eyes if the door won t stay down.
Garage door suddenly dropped.
If your garage door is falling shut rather than closing slowly there is most likely a problem with the garage door extension spring.
If this is the case then the worn springs will need to be replaced.
To isolate potential sources of interference turn the circuit breaker off to the garage and plug the garage door opener into an extension cord from another room.
If they aren t on loosen the fastener holding one of the safety eyes.
If the garage door suddenly comes crashing down and will not go back up this is usually the result of a snapped cable.
You ll probably notice that you ve got a dropped door because of loose hinges if the door drags on the floor a little.
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.
Garage door won t close all the way if the garage door opens correctly but fails to close completely there may be one of three common causes.
Over the years screws will naturally work themselves loose.
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 won t open or close if you have an automatic garage door opening most likely something is off in the programming.
When your garage door falls too quickly it is a symptom that something is loose of broken.
Also it could be due to springs and cables that have been poorly installed or a damaged garage door track.
If it s way off balance it could actually fall of the tracks and injure someone.
One of the more difficult problems for do it yourselfers to diagnose is a worn cable pulley on an extension spring door.
The close limit switch may need adjusting.
A garage door that s out of alignment can be very dangerous.
The door may get jammed and there could be an emergency situation where you need to get your car out.
Let s take a deeper look into each cause.
Snapped cables should be professionally replaced before you try to use the door again.
This page should help you troubleshoot your garage door problems.
While many problems that keep the door from opening are caused by broken springs a lot of other parts could be keeping your door from functioning properly.
Luckily this is really easily solved.
One of the main causes of a dropped door is a loose hinge.
Clean off any debris.
Typically this happens because of springs that have become too loose or cables that are broken.
If the range improves then the interference is coming from a device in the garage.
The cables experience wear and tear after years of helping to control the movement of the door and the tension of the springs.