Upon arrival to the scheduled system maintenance, I was shown to the a/h in the closet and c/u on the roof of the condo. I pulled off the panel door to inspect all electrical components connections, collect amp draw/voltage readings off electrical equipment, and check the unit for cleanliness. The a/h unit has biological growth. I recommend a UV light system to keep the unit clean and produce better indoor air quality. The evaporator coil is clean and blower fan has some debris build up. The d/t temperature was 22° and within normal range. Photos uploaded to ST. All electrical components were secure and within factory range. This is a common drain line, there was some water in the safety float switch. I dried out the switch and let the customer know if this continues to happen there may be a drain issue with the common line. The filter was clean and recently replaced. The c/u disconnect box was broken. The metal copper was lodged into the power while the other half was loose. I exp