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Craftsmangarage door opener problem

Posted by misfit (My Page) on
Sun, May 10, 09 at 11:37

Model # 139.53638SRT
When I hit the remote control the door moves about a foot. It then stops and comes back.
It sometimes stops between limit switches. If I push the remote a few times it will come back to the limit switch and then work fine. Maybe a couple of hours later I can push the remote again & it is screwed up again.
I have checked the sensors and they are working fine.
I adjusted down force control, sometimes it helps and other times it does not.
The garage door moves freely when not attached to the opener.
Any suggestions?

Follow-Up Postings:

RE: Craftsmangarage door opener problem

It sounds like you may have a problem with the RPM sensor which is a small printed circuit board just in front of the motor. Check the small LED just to the left of all those white wires. It may be giving you a code. 5 flashes and a pause repeated over and over is the code for RPM sensor.

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