Furnace precision tune up; clean and tune up furnace; clean burners, test ignition components, adjust gas level, test safety circuit, check indoor motors, checked all electrical components, tested indoor air flow, checked heating temperatures, and tested overall furnace operation. Air Exchanger cleaning and tune up. Remove filters and core to vacuum. Also clean cabinet interior. Inspect bearings on blower assembly. Install core and filters. Clean off outside hoods. Test operation of air exchanger. Found the blower motor to be overheating and leaking oil; replaced blower motor and test all operation. Recommended Surge protector to prevent power surge and damage the electrical components. Recommendations has been denied as of now.