came out to a possible recall. I serviced this system a week ago. I Installed two capacitors a hardstart added refrigerant and cleaned the outdoor coils. I got here today and the customer turned on the system and it was making a really loud rattling noise inside the furnace. I open up the furnace door and found that the blower wheel was all mangled as if a rodent or foreign object got caught inside the wheel. There was also wires that look like they had been chewed up a bit. I changed the blower wheel and the system did come back on and ran smoothly. I offered to have an install supervisor out do to the age of the system and the subsequent break downs. The owner agreed.