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

 o
Problem closing with Craftsman opener

Posted by dand34 (My Page) on
Sun, Jul 18, 10 at 8:06

I have a Craftsman opener, model 139.53985D. It is not quite 5 years old. Out of the blue, it started having trouble closing the door. It will open perfectly, but when closing, it may go 6 inches or an inch or a foot and then stop. It does not reverse like it would with a sensor obstruction or if it hit something. I also noticed that the lights just flicker when it stops, they don't really flash like when there's a problem otherwise. It may take several seconds for it to respond to the remote again (or the wall panel) and when it does, it will still continue down. Takes 2 or 3 minutes to get the door closed this way! I took it all apart and ran it disassembled. I noticed that the motor got very hot after running it through several cycles, but perhaps that's normal for this motor meant to run only a few seconds at a time. DOes this sound like a logic board problem? Any way to tell for sure? Can get a new board for $65. Would pay that if I knew it would fix it. We have had a lot of storms lately. Lightning damage to board? It looks new. When lightning once took out the board on my dad's opener, it was completely dead and you could see the burnt components on the board. Thank you in advance for any help.


Follow-Up Postings:

 o
RE: Problem closing with Craftsman opener

It sure sounds like a logic board. I cannot think of any other reason that would cause it to just stop like that on the way down. Check the logic board for burnt or missing traces on the printed circuit.


 o
RE: Problem closing with Craftsman opener

You can get lightning damage on GDO boards without any visible burn marks. I've had it. The board looked like new, but did not work at all.

In another life, I repaired hundreds of communications equipment circuit boards of a certain type that failed due to lightning strikes. Not a single one had visible damage.

I have also had other equipment take a strike and end up looking like someone tossed a grenade in there. Lightning is very unpredictable.

Just an FYI, not a guarantee that you really do have lightning damage.


 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