Completed with heat and ac, 19 year old trane gas horizontal in attic with a 2017 2 stage trane condenser 5 ton. Unit heating and cooling at this time of check up. Furnace heat exchanger showing wear, along with inducer motor, flame sensor and ignitor, condenser fan motor is leaking oil with weak capacitor and filter is getting dusty. Gave the option to do all preventive repairs, minimum repairs, furnace upgrade or complete. Customer wants to wait for now.