Arrived on site to preform a two system maintenance. Indoor; changed filters and cleared drain line. Checked electrical connections, amp draw, and capacitance. Found upstairs unit capacitor reading low and no backup water safety. Found clogged filters on both units, upstairs (16x25x1) filter needs to be changed by customer every month-2 months and main level (16x25 )Outdoor; cleaned condenser coils and checked refrigerant pressures. Checked electrical connections, amp draw and capacitance, both units operating normally at this time.