garage door goes up but then sometimes it slides back down

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Old 03-04-14, 11:34 AM
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garage door goes up but then sometimes it slides back down

I have Genie garage door opener and I have looked at the adjustments on it. These adjustments just control the force to lift or close the door. I have played with the adjustments and it seems to work for a little while but then it starts sliding back down again. This problem does not happen all of the time but it is annoying and I don't want it come back down on top of my car when I am pulling out. It will stop and lock in the stopped position if I push up on the door when it starts coming back down.

TIA
 
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Old 03-04-14, 12:01 PM
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The first place that I always start, if for no other reason than it's good periodic maintenance, is to lower the door, pull the release to disconnect the door from the opener, and operate the door manually. Be careful, as a garage door is heavy and can seriously injure or worse, but, if the springs are properly adjusted, you should be able to fully raise and lower the door manually with minimal effort, and the door should remain balanced anywhere in its travel.
 
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Old 03-05-14, 11:38 AM
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door sliding back down

once the door is up all the way it's resting on the horizontal parts of the track , and the resistance of the motor to turning ( because it is low geared) , should prevent it coming back down.
once it slides down , does it go back up and stop in the correct place , if it doesn't maybe the gear or gear shaft on the motor is stripped.
 
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Old 03-05-14, 01:15 PM
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No it does not go back up, it just slides down. Not all the way to the floor but pretty close. Is the gear or gear shaft replaceable or should I just buy a new opener?
 
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Old 03-05-14, 01:36 PM
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Look at aka pedros post. How does the door act when disconnected from the opener?

No way a door should "slide back down" from the open position when connected to an opener.
 
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Old 03-05-14, 02:01 PM
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door slips back down

There is usually a nylon gear driving the shaft , it could be stripped of split in two. They usually are replaceable. When you try to open it by the opener , is there any chatter noise , does the gear turn on top of the opener.
 
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Old 03-06-14, 10:09 AM
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I have not done the maintenance on the garage for a while, but this does not happen all of the time. I will do Pedro's check today and check the gear and gear shaft

Thanks everyone
 
 

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