Craftsman Garagedoor Opener Acting up

Hi, I have 2 Craftsman 1/2 HP Garage door openers. Every once in a while, one of them would begin to close about 1/4 the way down, then it would open up again. I have checked and there isn't anything in the way of the laser eyes if you will. I have also turned the control knob from a #3 setting to a #5. I could go up to #8 but haven't yet. I was just wondering what my issue could be? and or how to fix it?

Hi Homeuser, welcome to the forum


A lot has been written on this forum about Craftsman garage door openers -

I will try to find it and refer you to that

Ok, thanks!
In the meantime, I have done some research and found that my springs might be too tight....

Well that sounds like a plausible explanation for the problems you're experiencing. Have you checked yet?

Yes, I actually loosend them up, however, I never touched the other door, and it is now doing the same thing...loosened them up, but still does it....hmmmmm?????

Hi, in regards to your garage door going back up after you've closed it. Ours does that when it needs grease. Don't ask me why, but the whole track has to be lubed about twice a year. Also, when it's very cold outside, the lube tends to thicken up, and this causes the same problems.

Hmmmm...Interesting....I never greased the tracks up...ever..that's over 9 yrs now....what kind of grease do you use?

Ok, I didn't grease the tracks, However, I did
WD-40 the wheeles, wheele sprokets. Since then, about 3 weeks now, I have not had the problem sinse then.....I think that was the problem...Thanks JanF!!!!!

You're very welcomed! Sorry I didn't get back with you on what kind of lube. Husband has some sort of machine goop and I kept forgetting to ask him what it is. Gotta love that WD40.