When I pull the button hole lever all the way down on my Singer Advance 7422, my machine just beeps at me. If I pull it up just a little, it will sew but when it bumps one of the levers where it is supposed to, it just keeps stitching in a straight line. Help!!!

SOURCE: Machine Won't Sew

It sounds like the sensor on your buttonhole lever is out of adjustment.Contact the people listed on your warranty papers for repair.
sewman7

SOURCE: Singer 7462 buttonholer

generally most sewing problems are due to sticking parts because of non usage as =you have stated or because the tension has been not set right. what I suggest is that you take the time to do some cleaning of the machine like what bis pointed out in your manual use a light weight mineral oil to wipe the moving parts with, but not too much. also adjust the tension of the foot so there is pressure on the material as to move it while sewing. after all the cleaning and adjusting rethread the bobbin and make sure it is seated properly also rethread the need and make sure the thread moves freely from the spool. this should do the trick. please rate this

SOURCE: Button Hole Beeping on 7462

Yes frustrating issue this one. I discovered that you need to pull down the retractable button hole guide found behind the needle threader (not visible when you are sitting at the machine).

Hope this helps, happy sewing!!!