Arrived on site to preform a two system tuneup. Indoor; changed filters, checked electrical connections, amp draw and capacitance on both units, found upstairs unit with a week capacitor and blower assembly dirty with a rusted/corroded evaporator coil. Outside: cleaned condenser coils and checked refrigerant pressures, found upstairs unit low on refrigerant . Checked electrical connections, amp draw and capacitance on all motors. Replace upstairs blower capacitor and pull and clean blower motor assembly. Charge upstairs refrigerant system to manufacture spec