Once you locate where the wheels on the door are jumping.
Garage door wire jumped pulley.
This could be the issue.
Use your hands to wrap the cable back around the pulley so it s taut.
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In this system the cables run up the height of the garage door and then through a system of pulleys attach to the springs on both sides of the garage door.
At the top left and right corners of the garage door frame are pulleys that hold the cables that open the door.
This means when the strands begin to deteriorate it will make the wire and eventually get your garage door cable broke.
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Cables may come off the pulley system because of uneven operation on the two sides of the door opener system.
In this system the cables still do the lifting while the springs still provide the counter balance or force to open and close the garage door.
The garage door cable consists of several strands of galvanizing wire.
Garage door cables can spin off.
Is your cable off on your garage door.
You should never attempt to get a garage door with a jumped cable back on track without a professional unless you have prior training.
Reach overhead and pull the rope that releases the door from the opener.
This can be an easy fix.
For pricing and availability.
Wind the cable around the pulley if it s loose.
Disconnect the garage door from the opener.
Quality companies in your area will typically be available to repair this type of damage within 24 hours for approximately 100 150 and the value is well worth it.
When you reengage the automatic opener the spring will put tension on the cable and tighten them further.
Follow me in this video on how.
Also inspect the pulley and the bearing inside of it.