"Failed" as in the window isn't rolling all the way up, or simply not operative???
The mechanism breaks, i am struggling to remember what exactly it is that breaks, but seem to recall it is nothing really repairable, need a new mechanism.
Gilly

__________________
Click here to see the items I have up for auction at EBay

Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)