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Craftsman 1/2 hp garage door opener problem

My craftsman garage door opener model 139.53675SRT2 will not go down all the way when I press the Control Console. The door goes down about 6 inches and the returns to the up position and the light blinks. If I hold down the Console button the door will close. The car remote open the door, but do not close it.

I noticed that both safety sensors lights are not on ( green color). I removed both wires that lead to the sensors form the main assembly. Doing this did not allow the door to close on it own.

Is the main power board gone bad, if so is it worth getting an new board? The opener is 13 years old.

Thank you.

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3 Answers from these members:
Joseph Perez
The Managemylife web site is a good resource to find out what may be happening with your Garage Door Opener. I did some research for you at Managemylife.com and found an excellent article that also has multiple expert answers at the bottom of the web page that addresses the most common questions that have been asked by other members. I hope this will help until your expert can answer your specific question. I attached the link below.
by Joseph Perez Earned 1,551 community points in Craftsman
November 8th, 2011
Answered in 5 minutes
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