A basic check list for maintaining Matrix filters. Vacuum or use compressed air to remove debris from reactor coils, core and capacitor tops; Check ventilation fans proper operation and clean as needed; Confirm that ventilation inlets and outlets have not been obstructed; Check electrical connections clean and re-torque as needed; Check utility line voltage for balance and proper voltage; Inspect all capacitors for domed tops, fluid leaks, terminal corrosion and intact bleeder resistor; Complete the Matrix filter field check list and record the no load phase currents; Record the SN, date of service and the applied repairs; Confirm the doors and covers are in place and properly closed