Maintenance: conducted maintenance for customers ac unit. Indoor: was functioning properly and motors were in range. Drain line was blown out. Noticed unit did not have a float switch recommend installing one in the drain pain. Outdoor: was also functioning properly. Fan motor was and compressor were in amp range. Capacitor +\-5% was down by 2%. It is still in range but starting to show signs of wearing. Overall: system had 17.6 split. Customer did mention some rooms would hotter or colder in others. Talking the option of adding dampers and balancing air flow in the future.