Performed ac maintenance on 2 systems Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps Both systems were slightly low on refrigerant. The upstairs system needed 10 oz R410A and the downstairs system needed 6 oz R410A