Yep! Just went through the same thing. Tried everything and still a mess. Went to the sewing doc and several phone calls from Doc later...... several things wrong. Need tension readjusted timing redone and something with the needle not centered so fixing that and the last call said I needed a new "hook" what ever that is for $83.?? plus anything else he finds.. Oh and my Ilet button hole stitch only will work in reverse but he did getit to at least work. I was getting
"9's" instead of a circles. But at least it is fixable and I won't have to buy a new machine. Said I should have it back by Wed. I have the Viking 870 Sapphire about 6 yrs old. Have a thread on QB asking if anyone else had had that problem. Hoping cost will be 200.00 or less!!