Repaired Sears garage opener still not working
When my 1/3hp Sears chain drive opener stopped working I realized a metal bushing was gone and replaced it. Now the motor and shafts spin free again. I also replaced the plastic gears which were in the kit. However, now the door will only go up six inches and then immediately go back down six inches. The limit controls seem to be set fine and the door is not binding. I am wondering if the circuit board could be messed up as we had lightning the day it stopped working. However the other garage door opener in the garage works fine. I have unplugged the unit for an hour and the manual gives me no other ideas.