Move the car out of the garage and then get a ladder and put it under the front of the motor.
Your will need a 2 1/2 inch wrench 1 flat head screwdriver
Then un plug the motor for the outlet and then losen the chain with the 2 1/2 inch wrench then go to the the up limit and turn it 3 full turns in the OPPOSITE of the arrow I
Then plug the motor back into the outlet and go to the wall button and push it for 3 to 5 seconds that will make the traveler or trolley move of that bolt then push the wall button again if the traveler doesn’t hit the bolt then you may
Unplug the motor for the outlet and tighten the chain back and then plug the motor back into the outlet
IF THAT DID’NT WORK CLEAN THE LIMITS
IF that doesn’t work unplug the motor from the outlet and clean the limits with a fine piece of sandpaper MARKED IN RED
JUST SO YOU UNDERSTAND
If you turn the DOWN limit in the direction of the arrow your telling the motor to close more
If you turn the DOWN liimit in the OPPOSITED direction of the arrow your telling the motor to close less
If you turn the UP limit in the directionof the arrow your telling the motor to open more
If you turn the UP limit in the OPPOSITE direction of the arrow your telling the motor to open less Ok