19 year old Goodman package unit model PGB036100-1A. The inducer motor has burnt wiring from over amping and needs to be replaced. Checked the gas valve and found high resistance on the coil, the gas valve needs replaced. Checked the heat exchanger and located a crack in it. The heat exchanger needs replaced. The blower assembly is dirty and needs cleaned. Checked refrigerant pressure and found them to be low. Inspected for signs of leaks and found refrigerant oil on the evaporator coil. Coil needs replaced. Cost of repair is $8,268.11 Recommend replacement of the equipment.