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  1. A

    Garage door does not open (trolley stuck?)

    Yes it is. Thanks
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    Garage door does not open (trolley stuck?)

    Hi all, Posting back as promised. I had to get a garage door guy to get my door balanced. However, we found that the limits kept changing each time the garage door was closed or opened. So we looked opened the box and inspected the gear assembly again. We found that the issue with the limit...
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    Garage door does not open (trolley stuck?)

    Hi Mike, I think I finally got the limits to work. I was having problems to get the limits to stay. I think it is probably because the garage door is not balanced and may be causing too much drag on the limits. I am going to get the door balanced and post back. For now after a couple of...
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    Garage door does not open (trolley stuck?)

    I am trying again this morning. Will post back results
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    Garage door does not open (trolley stuck?)

    Hi Mike, As you indicated, I have been trying to adjust the limit switches with just the trolley (i.e the door is not connected). . I was able to decrease the down travel limits to position the trolley above the latch which hooks into the garage door. I adjusted the up travel to move the...
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    Garage door does not open (trolley stuck?)

    Thanks WindowsonWashington! I have been trying to play with the limit switches now :(
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    Garage door does not open (trolley stuck?)

    Thank you guys. That was the issue with the trolley. It was out of sync. The trolley moves now..but now seems like it is a limit issue. On the opener end the trolley stops much before it hits the stop bolt. On the garage door end it hits the stop bolt hard and then reverses. I assume now I have...
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    Garage door does not open (trolley stuck?)

    Thanks Mike and nealtw. I will give this a try tomorrow (Friday) and post back. Have been opening and closing the garage door manually for the past two weeks.
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    Garage door does not open (trolley stuck?)

    http://youtu.be/-qgSZ5P4SsU
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    Garage door does not open (trolley stuck?)

    The gears rotate fine with the chain off. They rotate completely clockwise and anticlockwise and hit the limit switches as in the first video With the chain on and with some slack, when I press the wall switch the chain tightens up (the side opposite the adjustment bolt) When I press the wall...
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    Garage door does not open (trolley stuck?)

    Yes the side with the adjustment bolt tightens. So basically should I remove the chain and let the motor run without the chain until it hits the other end of the limt and then put the chain back and try. I ordered the capacitor but based on what you said, it appears that it may be an out of...
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    Garage door does not open (trolley stuck?)

    Thanks nealtw. I will check it out
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    Garage door does not open (trolley stuck?)

    No problem. Thanks for trying to help.. It is just a confusing problem.
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    Garage door does not open (trolley stuck?)

    I have the garage door disconnected from the trolley. Do the springs still get used when the door is disconnected. I am still learning things :confused:
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    Garage door does not open (trolley stuck?)

    The adjustment bolt is there...I have attached a photo. When I shot that video with my phone it was initially inverted and I had to rotate it to straighten it out. So I dont know what happened there. But video # 3 is what puzzles me. With the chain loose (droop), and pressing the wall switch...
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    Garage door does not open (trolley stuck?)

    Videos added. Trolley moves fine with chain removed off the motorhead http://youtu.be/lOXXnectGC8 Gear and Sprocket/Motor rotates fine with chain removed. This is how I understand it. When looking from below, if gear rotates anti-clockwise then garage door is opening. Clockwise means...
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    Garage door does not open (trolley stuck?)

    Hi Mike, I replaced the gear and sprocket on the motor head. It is the part in the middle at this link. I did not replace the worm gear http://www.amazon.com/dp/B00023RTD6/?tag=skimlinks_replacement-20 The garage door has been disengaged from the trolley by pulling the red string. So...
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    Garage door does not open (trolley stuck?)

    It is a liftmaster 1/3 HP about 13 years old. I did not change the position of the trolley when I changed the gear/sprocket . I will post pictures and videos later in the day. I have to get them off the camera. With the chain off, the trolley moves freely. One thing I noticed is that I am not...
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    Garage door does not open (trolley stuck?)

    Hi WindowsonWashington, I sent you a PM with my email address in case FirehawkMike can provide any insight. Thanks again for your help
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    Garage door does not open (trolley stuck?)

    Hi all, Restating the problem.. Problem: Trolley is on door side. Not against stop bolt on the opener side. Garage door no longer opens What I have tried so far:  Replaced gear and sprocket. It did not make a difference Removed chain from gear. Disconnected garage door...
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