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Why does the power shut off on my garage door opener when I try to open the door?

Craftsman 1/2 HP opener Model # 139.5398511. The opener will not open door. It will start and then it will lose the power to the opener itself and then will reset in 2-3 min. If you try to open it again the problem repeats and it shuts off again.

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Manage My Life
by Manage My Life
February 6th, 2008
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