Tech arrived at a membership tune-up. Upon inspection, the capacitor was within specs. The contactor was in working condition. There was no observed surge protection. The filter was dirty and replaced. The ductwork and blower area was dirty. The heating system reached complete ignition. The Delta was within range. The customer was informed of recommendations today. She decided to move forward with installing an AprilAire filter upgrade kit and a drain treatment strip. The treatment strip was installed today and we will order the 16*25*4 AprilAire upgrade kit. The system was functioning upon departure.