When I try to open the garage door the motor runs and runs until I push the button again to stop it but the chain never moves and therefore the door does not open.
Nothing is straining, the chain is not too tight, the motor does not sound like it is working hard, it just does not move the chain.
I have the same problem with the worm gear shaved. I bought the replacement part and replaced the worm gear. The door did not travel to the full distance between the limit switch. It hit the upoer limit, stopped. When I pressed the remote again, it only reverse for a short distance and never hit the other end of the limit switch. Any hints what the problems are?
You probrbly need to replace the gear and sprocket kit inside the opener. Also make sure the trolly is not disengaged. Tug the rope!
I have the same problem. I just removed the cover and discovered a nylon gear had been worn out. I found lots of shavings inside the cover. The nylon gear is beneath the exterior chain gear. I am looking for information on how to replace it, if I can find the part. If you decide to look at yours, unplug the power and remove the sheet metal screws securing the bottom portion of the cener cover to the front and back covers. Then just remove the upper screws from the center cover. Good luck.
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Not this one but a Stanley chain drive unit.
Hi Edward i have the same problem...Where u able to find part. Could u give me more details...
I have same problem but i am not sure how to replace it. Do i have to remove the whole unit down to replace the part or i could do it while the unit is tied up.
Let me know if you guys know to repair/replace the part.
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