Since the needle moves when you turn the wheel, the pedal must be the problem. Try taking the pedal apart to see if something became disconnected inside. Although, I can't imagine a drop could damage a foot pedal since they get "bunged" around a lot with use. If you cannot determine the damage, call a sewing machine shop, give them your model information and ask if they have a pedal that they can plug into your machine to see if your pedal is damaged. If you are not comfortable taking your pedal apart, I would call a shop anyway to test another pedal. Best wishes