If the door was closing too quickly move the spring to the next higher hole on the bracket.
One side of garage door higher than other side.
Sometimes your garage door will close on top of an object and the cable on that side will pop off.
When this happens you need to shift it back into position.
If the gap under the door is less than one inch make the marks 1 8 apart.
This can happen when the door has shifted to one side causing it to appear uneven.
Garage door crooked and the cable came off.
Check to see if one door hangs lower or higher than the other.
Retest the door balance as you did in step 1.
In the next series of steps you will move your ladder to the other side and climb up to the left cable drum.
The mark on the shaft should be about 1 4 above the mark on the drum as shown.
The most simple and common is door shift.
If it was opening too quickly move it to the next lower hole.
Adjust the springs on both sides of the door the same way.
Run your hands between the front corners of your side by side refrigerator doors to determine if the doors must be aligned.
Using a marker or file mark the shaft and the drum.