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Can you help me get my garage door opener to close the door?
My 10 yr old Craftsman garage door opener model 139.53661SRT2 recently had a gear that broke. I installed a replacement gear that I purchased through Sears. After replacement my garage door opened just fine with the garage door opener. When I tried to close it, the trolley moved about 12 inches toward trying to close the door and then it moved back to the full open position. I've tried adjusting the down force and limit and I've ensured there is nothing blocking the safety reversing sensors. Nothing seems to work. The only thing I question I might have done wrong when replacing the gear is that I am not 100% positive I put all of the wires back on the right connections on the capacitor. (but I assume if I connected some wrong it wouldn't even try to operate, right?)There were also two other wires (I'm not sure what their connection is to) that I could have possibly reversed their connection. Do you have any advice for me?

Asked by customer about about 2 years ago

(1 expert, 0 community answers)

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expert, about about 2 years ago


If you reversed the blue and red wires from the motor, the motor would try to run in the wrong direction and jam. If you reversed white with either of the two wires the motor would only run one direction.

Does the motor move forward and back each time you try to operate it? If so something is wrong in the safety sensor circuit. Do both lights glow on the sensors? Does the LED on the back of the logic board flash a code? Check the voltage at each sensor. You should have 5-6 volts DC. Did you disconnect the sensor wires from the logic board? If so the two wires with stripes go together and the two plain wires go together. They go on terminals 2 and 3, and it doesn't matter which goes where.

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