I'm in Cary, NC, and just repaired a Mitsubishi Electric Split-Type Air Conditioner that was experiencing reduced cooling efficiency. The issue was traced to a blocked air filter and low refrigerant levels. After replacing the filter and recharging the system with the appropriate amount of refrigerant, I conducted a thorough system check to ensure all components were functioning correctly. This repair has restored the unit's ability to cool effectively, providing relief from the North Carolina heat.