We inspected the unit for return lines relocation,,, unit has 3 return lines (12,10,8),, unit has hard pipe lines,it is also 11 years old, we were not able to finish the estimate because customer never showed up, we highly recommend to replace the whole system including ductwork,, we found blower housing/ motor/ wheel sitting outside, blower motor was leaking oil, at this point we don’t know if it was replaced,,,we didn’t open it.