Tech arrived at a warranty tuneup. Upon inspection the capacitor was within specs. The contactorless board was functioning. The condenser coils were hosed off to assist with air flow across the coils. The Delta was within range. The drain system was clear and bleach was poured. The heating system reached complete ignition. The ductwork and blower area was dirty. The attic insulation is very low. The customer was informed of recommendations today. She will discuss recommendations with her husband. Insulation can pay for itself, there are tax credits available and can extend the life of the system. She would like a call back in midMay. The Tech will follow up at that time. The system was functioning upon departure.