In colder weather the Sears garage door stops when opening
In colder weather the Sears garage door stops when opening half way. This happens most winters starting in mild 40s and goes away all summer. I have inspected and can not feel or see what the problem is. It acts like there is a binding or dead spot on the screw motor but it's not.
I can help the door and it goes up better with added up force to helps some. I found this solution but not fully understanding what it's saying (vs maybe old 80's which they are but good IMO).
"The controls (potentiometers) that regulate force get dirty in time and make poor contact inside which become evident when cold as the contact springs separate from the track. Cleaning the inside of them is the solution, I injected 91% alcohol with a fine hypodermic (G27)needle through any spaces I could see leading to the inside of the potentiometers while turning them."
Have you had this experience and can share on the process of help or correcting? I have missed this in looking in the past if it's in the 80's manuals.
Thanks In Advance For Any Help!