Diagnosed and repaired a malfunctioning Rheem RARL-JEZ air conditioning unit in Branchburg, NJ. Identified faulty dual capacitor using Klein Tools MM400 multimeter. Replaced with a new TITAN PRO TOCF45 45/5 MFD 370/440V capacitor. Cleaned condenser coils with Nu-Calgon 4291-08 Nu-Brite, improving heat dissipation. Recharged system with R-410A refrigerant using Fieldpiece SRL8 digital recovery machine. Installed new Honeywell TH6320WF2003 Wi-Fi thermostat for improved temperature control. Conducted final performance test, confirming proper operation and cooling capacity. System now functioning efficiently, providing optimal comfort for the homeowner.