During today's AC maintenance visit, I discovered several issues requiring immediate attention. The air conditioning tune-up revealed significant debris accumulation in the condenser unit, which I thoroughly cleaned to restore proper heat transfer. My AC maintenance checklist identified a failing capacitor showing irregular voltage readings, which I replaced to prevent system failure. I also addressed concerning noise from the blower motor by lubricating the bearings and adjusting the belt tension. After cleaning the evaporator coil and flushing the condensate line with antimicrobial solution, I calibrated the system controls and verified proper operation across all cooling stages.