craftsmen 1/2 horsepower garge door opener
i have the craftsmen that has the three botton on the wall, light, door, lock. and the outside key pad. the unit worked fine then last week when i went to close it the the would go alittle then stop and go back up, it will only close if i hold the inside pad door botton. also the light flashes on the unit and the key pad. one of the sensor is green and the other is yellowish, any help???????