Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Craftsman 41A4315-7D. Door opens only 2 inches

I have a Craftsman 41A4315-7D. Door opens only 2 inches then stops. I've realigned the sensors (I think), unplugged (rebooted) the motor-I cant get the door to fully open. If I manually open it, I can then close it electronically. Any ideas?

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  • hlacelle Nov 16, 2009

    Solution was right on-it's a broken spring. Any way someone can rough estimate the cost of repair?

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Check the door springs. One may be broken. You may have a bad drive gear which is a nylon gear just in front of the motor. Remove the cover and take a look. It will be obvious if it is stripped.

Posted on Nov 15, 2009

Testimonial: "Right on DonO It is a broken spring! Do you have a rough est of repair cost?"

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I looked around online, and it seems that the Safety Extension Springs (if that's the one that's broken) range from $25-$45, your best quess would be to contact your local Lowes or Home Depot.

Posted on Nov 16, 2009

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