Garage Door Opener- repair or replace?

18 years ago

The chain recently came off our garage door opener. I was able to get it back on, and in adjusting/tightening to the recommended tension and testing, the chain came off again. It appears that the gear or sprocket on top of the housing is slightly elevated and tilted.

Can this be repaired by an amateur like myself, or do I need to get a professional to repair it?

After calling a few local shops, it sounds like I can buy a whole new unit for less than it will cost for someone to come and look it and possibly fix it.

I greatly appreciate any comments or help!

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Comments (2)

Don_
18 years ago
That part is not hard to install. If you were able to get your chain back on you should be able to do it easily. The part number is 41C4220A. I no longer remember the price. One thing you need to check is the condition of your door. It is usually a problem with the door that causes the bearing to go bad in that assembly. It is called a 'gear and sprocket assembly'.
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installer01
18 years ago
I have changed this part many times. If you are able to make the change, then is likely worth it,(if you are going to pay Sears to do it, then don't do it. You will pay more than it is worth) You can get them reasonable on ebay. It is the top metal gear, and has a large white gear connected on the bottom. I don't recall the part number, as I recycle them from removed units,(I beleive the part number is listed in the post above) It is mechanical surgery, if your okay about that. Remove the door opener power head from the ceiling and put it on a table to do this one. You may want to take a picture of the internals before you start removing things to get at the part to change. Dan
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Sounds like the chain was not reinstalled correctly. Loosen the chain and remove it from the sprocket on top of the motor unit. With the door closed, use the remote and run the motor until that sprocket turns clockwise and stops. Reinstall the chain and give it a try. I hope you remember the settings for the force and limit adjustments.
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Okay, so we were able to replace the gear. We were adjusting the force and limits, and we seemed to be making progress, but now we get NOTHING. The yellow light on the back of the unit is now continuously blinking. What have we done wrong, and can we correct it? I hope you're reading this, Don!
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Garage Door Opener- repair or replace?

Comments (2)

Don_

installer01

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