first floor system is not heating properly. Upon arrival we noticed that it is currently 58° inside the home. system has not been heating correctly for the last 3+ weeks. We checked the system in the attic and noticed some biological growth on the inside of the system, along with the second floor as well. We went out to check the outdoor system and noticed that the system was not starting due to a failed capacitor. We also noticed that the contactor was very worn out. Refrigerant pressures were within manufacturer specifications however we did notice that the evaporator coil was rusted and will leak at a certain point. After Natasha approved to have all repairs done we tested system and both systems are heating at time of departure.