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

1/2hp Craftsman GDO closes all the way then opens, stops, seizes

Posted by timb70 (My Page) on
Tue, Jan 23, 07 at 9:17

I have a 1/2 HP Craftsman garage door opener, model # 139.53635SRT. The door closes all the way and then retreats to the wide open position and stops and seizes against the stop bolt. When I hit the wall button to make it move again, it just makes 2 humming noises. I release the tension on the bolt, try it again, and it does the same thing. I can close the door, manually, without bucking and it closes smoothly. My father-in-law thinks it may be a bad relay that controls the stopping of the door/motor. I dont have a manual. Any ideas?

Follow-Up Postings:

RE: 1/2hp Craftsman GDO closes all the way then opens, stops, sei

Sounds like your up and down limits are misadjusted. You will find them on the side of the motor unit and you will need a small screwdriver to adjust them. Turn both about 3 turns in the opposite direction of the arrows printed on the cover. This should get you in the ballpark. Some tweaking of the down limit will probably be necessary to close the door properly.

 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.
  • Please review our Rules of Play before posting.
  • 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