Return to the Garages/Workshops Forum | Post a Follow-Up

 o
Sears Opener Keeps Opening

Posted by yardbag (My Page) on
Sat, Sep 2, 06 at 11:25

My Sears Craftsman 1/2HP Opener is an old Model (#139.664002) without electric eyes. It recently refused to stay in the closed position - dutifully opening when triggered either by pushing both wall buttons or by using the remote. It closes until impacting the floor then switches direction operating until fully raised.

I've read a good many summer posts & responses, not quite seeing a similar explanation. Springs look good, traveler is not obstructed, visible wiring appears in good condition, rollers are greased. Ideas on trouble-shooting this symptom?


Follow-Up Postings:

 o
RE: Sears Opener Keeps Opening

Sounds like it is bouncng off the floor.
Try adjusting the down force.


 o
RE: Sears Opener Keeps Opening

Your door is closing too far. On the side of the motor unit you will find two controls. One is the 'up limit' and the other is the 'down limit'. With a small screwdriver turn the 'down limit' in the opposite direction of the arrow printed on the cover until the door stops at the garage floor but does not reverse to the open position.


 o
RE: Sears Opener Keeps Opening

Brickeye & Don -
Kudos to each of you. The up & down limits were actually on the bottom of the unit, but hidden by the light cover. After a few foolish attempts at playing with the up & down force screws (on the side), I realized where they were. The limit screw location has probably changed over the years. I'm in business, at least for now. And, the unopened replacement unit is on its way back to Sears.

Oh, I tried the tech # you mentioned in an earlier thread, Don. But because I had a pre-electric eye version, they wouldn't even talk to me. "I'm not UL-certified". I suppose eventually, I will be. Thanks for keeping me questioning.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Garages/Workshops Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here