** 8-12 complete semi annual maintenance scheduled 5/20 Spring Pm On 05/22/19 On arrival set unit to call for cooling measured supply and return air temp measured voltage and amps inspected electrical connections checked drain and cleaned checked filter and replaced checked water pressure and temp checked compressor capacitor checked all other electrical connections unit operating normal at this time. Highly recommended to INSTALLATION SUPPLY TRUNK I found the blower housing is rusted I attached pictures to history i suggested to do ASAP to avoid future problems.