My garage door was activated while frozen to the ground. Now the motor runs but doesn't move the chain. Is it fixable?
It is a Sears Craftsman garage door opener, model 139.53627SRT. When I tried to open it, it was frozen to the floor, so the motor just ran for a few seconds until I cycled the opener down. I freed it from the ground, and when I tried to open it again, the motor ran, but the sprocket and chain would not move. Can this be fixed? My manual doesn't have that scenario. Thank you very much.
Jimmy k
Expert
Unplug the opener from power and remove the outer cover of the motor unit. Turn the opener on and see what is broken. It probably stripped the nylon gears that drive the sprocket.
I am sending you a copy of the instructions we wrote up for replacing the gear and sprocket. You can decide if you want to do it or get a price for repair and decide if you want to repair or replace the garage door opener.Unplug the garage door opener from the power. Loosen the chain at the trolley and remove it from the sprocket on the opener. Remove the outer cover from the motor unit of the opener. Remove the 3 screws that hold the sprocket and gear assembly to the top of the motor unit and lift the assembly out the top.Remove the clip and the gear that drives the limit switch. Note the position of the door and of the limit switch. be sure they are in the same approximate positions when you reassemble.Remove the screws that hold the motor to the motor unit housing and remove the motor unit. Mark the wires as you remove them so you can put them back as they were.Drive the roll pin out of the motor shaft and slide the worm gear off the shaft.Join this conversation.
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