I have the Janome 6600p I think it is the same machine. I bought it about 1 1/2 years ago and have a lot of trouble with mine. Try using really good thread. I know it sounds silly, but mine will not sew unless I use good thread. I had to have a new motherboard put in 2 months after I got it. It works fine now. Take it back to the dealer and have them look at it. I hope you have a good service person in your area. I had a hard time finding one in mine. When they are working they are a great machine. I know you will get lot's of people on here that love the machines, but like anything there are lemons out there. I even called Janome directly and they were not interested in any problems I had.
Good Luck.
Last edited by skowron5; 02-05-2013 at 05:06 AM.