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Neil
Neil, Engineer
Category: Home Improvement
Satisfied Customers: 3736
Experience:  NZ Certificate in Engineering Electronics & Computing 25 years exp
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I was having an issue with my garage door opener.

Customer Question

I was having an issue with my garage door opener.
Submitted: 1 year ago.
Category: Home Improvement
Customer: replied 1 year ago.
The garage door goes all of the way down and then immediately reverses and opens all the way up. I have tried making the Limit and Force adjustments to no avail.
Expert:  Neil replied 1 year ago.

This is a limit switch issue... The door doesn't think it is at the closed position when it hits the floor and so immediately reverses the motor... Have a good look at the limits and their associated wiring and try adjusting again.

What make and model is your opener?

Customer: replied 1 year ago.
It is a Sears Craftsman 1/2 HP 315MHz - Model 139.53930DM
Expert:  Neil replied 1 year ago.

Turning the left limit adjustment clockwise will reduce the length of travel of the door...

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