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Reverse/Stop before fully open/closed
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Not open/close smoothly
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Broken Rollers
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Broken or damaged springs
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Not sealing properly
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Refuse to open or close
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Not lock properly
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Impact damage
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Make strange noises
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Remote not working
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Open/Close unevenly
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Bent tracks or hinges
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Jammed motor
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Only work sometimes
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Motor running after fully open/closed