craftsman door opening starting to squeak!
I have a 1/2 HP craftsman garage door opener (139.53672SRT1) that has worked fine for 12 years, but now all of a sudden it is making a loud squeaking noise when it is putting the door down only.
I listened carefully to make sure the noise was coming from the opener itself. I tried putting some oil in/around the opener sprocket, but that did not seem to make any difference.
Initially the squeak was just every so often as the door went down, now it is squeaking more and more as the door goes down.
Does anyone have any guesses what this might be, if its worth trying to open up the unit to lube something .. or is it maybe time for a new opener?