Craftsman garage door opener
I have a Craftsman garage door opener (model 139.53641SRT). The unit malfunctions when the tempature dips below freezing. When I push the buttom to open the door, the door raises about 6 inches and stops. When I close the door and try to open it again, the door raises a little further (6 inches to 1 foot) before it stops. I need to repeat this process 5-10 times to get the door to fully open. This problem first occured last winter. The problem went away once the tempature warmed up but recently reoccured when the tempatures dipped into the 30's.
Any thoughts or ideas on what may be causing the problem would be greatly appreciated. The unit is about 13 years old so maybe it's just time for a new one, but I wanted to see if a less expensive solution was possible before I replaced it. Thanks.