Semi Annual membership. Upon arrival to the scheduled system maintenance, was informed the air handler was in the closet and condenser unit is on the side of the house. Was also informed that filter felt wet and falls off the bracket. Inspected under the coil and saw build up and minor fins have been bent, I pulled off the panel door to the indoor unit and inspected all electrical components connections inside the air handler, collected amp draw and voltage readings off electrical equipment, and check the unit for cleanliness. The air handler unit has accumulated some biological growth and will continue to get worse. Recommend installing a Germicidal Ultraviolet Light System to help keep the unit clean and produce better indoor air quality. The temperature split is degrees in cooling mode and not within normal range. Checked and tightened all electrical components to make sure they were secure and within factory range. Vacuumed the condensate drain line to remove any blockage or debri