I checked in with Tina . I inspected the Thermostat. I replaced the 20x25x1 pleated filters. I set up my ladder and equipment. I removed and cleaned burners. I cleaned off the flame sensor/ Spark electrode. I regulated gas pressures . I cleaned out the inducer vacuum port . I checked all safety and controls . I pulled amp draws on all mechanical components. I tested the 2 mfd run cap which is still in range. 44 ° temp rise 75 ° return / 119 ° supply . The unit is operating at factory recommended specifications at this time.