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Craftsman garage door not working

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  • Craftsman garage door not working

    The Craftsman garage door opener part#: 41A4315-7B is not working. It won't open or close. It's making a humming noise when pressing the control. It's also blinking as well when making the noise. Any suggestion is much appreciated.

  • #2
    The humming can be the trolley stuck at the stop bolt either open or close. It can also be a striped gear and the humming is the motor running.
    Work light blink 10 times when problem with safety sensor and some blink in lock mode when trying close. If it's the light next to learn button that's blinking, please count the blinks.

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