Upon my arrival I performed 6 month checkups on 2 heat pump systems. Flushed and treated the water removal systems, washed condenser coils using water, cleaned and treated the electrical cabinets with electrical insecticide then verified system safety and performance. I found that both systems are in need of cleanings at the indoor air handlers, the kitchen side systems auxiliary float safety switches have failed, the backside systems voltage enhancement system is low and may need a refrigerant calibration after cleaning is performed. I spoke with the customer about my findings and went over recommendations. Today the customer approved the cleaning on the kitchen side system and will wait until closer to fall on the other recommendations for the backside system. Repair will need to be scheduled out for the kitchen side.