As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
Garage door pulley not working.
Usually the ball bearings break down causing the pulley to scrape against the track angle or the rivets fail and the pulley splits as in the picture above causing the door cable to stick.
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It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned.
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One of the more difficult problems for do it yourselfers to diagnose is a worn cable pulley on an extension spring door.
Opener systems can develop a number of problems including electronic problems with remote control units chain slippage faulty roller action and cables that come off the pulley system.
Garage door opener systems must be maintained to provide smooth operation throughout the years.
Bottom of the door is up on one side.
There are of course many other problems that can keep your garage door from functioning properly.
If pressing the button on your garage door s remote control doesn t work check the batteries first.
Try using your remote to open or close your door to determine if the reprogramming was successful.
One major cause of failure for garage doors using extension springs is that the pulleys wear out.
When a garage door fails to open and close properly the cause is often a worn pulley.
Finally it s possible the garage door opener s motor.
To reprogram your garage door remote locate then press your opener s learn button.
Click on a problem below to see the possible causes and solutions.
If you hear a scraping noise that could be a worn ball bearing is causing the pulley to grind the track angle.