Thanks Keith,
I have personally replaced a motor...simple job. The step does not want to retract.....just vibrates in and out a couple of inches. Dont suspect the motor or the controller. Was told by a RV serviceman that the gear was missing some teeth. I was told also that there were no replacement parts and that I would have to completely replace the step. Talked with Monaco they gave me the number for Lippert. They indicated parts were available and gave me the part number. Have just ordered the part. Just wondering if anyone had experience in replacing the gear.