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It is an older (9/99) 1/2 HP Craftman model. Been working fine since we got the house, but today it would only open about 6 inches then stop. The most o got it to open was about a foot. I have tried adjusting the limit screws and nothing! If i disconnect the opener from the door, i can open it by hand. The, when in the up position if i hit the button the traveler will open all the way until it reconnects. The door shuts fine, but then won't open again. Any ideas???
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