Originally Posted by kwheeler
Kitsie, do you know what sort of problems have been occuring with the 4.0? It sews really good for a few hours, then mine must start to heat up and it starts knocking really loud.
Sorry, I don't Kaye. Just have noticed from this board and general gossip that the 4.0 has lots of problems. Try a search on here for Pfaff. I remember reading that there were many problems when they were first introduced, but less now. There is a website for Pfaff owners you could check. I think a link is posted on one of the other postings here.
Who knows, my machine was turned in because owner wanted to upgrade to 4.0, so maybe mine has been repaired many times and is finally fixed! But haven't noticed reading about problems with it. Also there are sites that offer reviews of different machines so maybe you could google for that - "sewing machine reviews", I think.
Good luck!! Must be very frustrating!
PS Thanks Maia for that link.
Will check it out. Here it is:
http://sewing.patternreview.com/Sewi.../Review/1/3831