Upon arrival, found that the line set for main floor was freezing up due to low refrigerant. Frozen line set thawed out and caused some of the duct work to get wet (exterior only). Leak checked the evaporator coil and condenser. I only found the Schrader valve leaking. Homeowner approved replacing it and adding refrigerant. Homeowner also approved replacing failing run capacitor, dual capacitor, and contactor.