Complete 1 system a/c repair and preventative maintenance check. Replaced filter, checked electrical and safety switches all ok at this time. Found bacteria/mold growth on evaporators coil and blower compartment. Needs evaporator coil cleaning/blower compartment area and uv light system. The system is cooling normally. The bedroom on the right is colder the. The rest of the home tested the temperature of the ceiling and it was 5 degrees colder than the rest of the ceiling. Room temperature is about 4 degrees colder.