Thank you. I'm looking to help my dad, and not really familiar with the Aerostitch. The problem is when the air is turned on, the sewing needle shaft will not move even stepping on the foot pedal. He took apart the foot pedal, cleaned it and put it back together. After it was cleaned, it ran about 4 to 5 cycles and then stopped completely. Something is blocking the air. Do you think it may be plugged air hoses? The next plan was to replace the hoses.