Overhead Door Python II (model 0CG800ML)
My garage door opener doesn't completely open the door any more (1-2 feet from completely open). I hear some noises as the door raises, and it seems to get louder right before it stops short. The opener works fine unattached from the door (and without excessive noise).
When raising and lowering the door unattached from the opener, it seems heavy as it approaches full open. I've had this door for years, and the only problem I have ever had is it doesn't completely close (and reverses back to open) entirely on cold days. It has never had a problem opening until this week.
Can I try anything before calling a professional? Could it be lubrication?