Preformed 2 system maintenance on RTUs and checked exhaust belts. We tested all electrical components. All tested within manufacturer specifications. We changed all the filters for client. We found that RTU 1 and RTU 2 that the fresh air dampers are not working/installed. They have all the parts there for it to be installed. We also found all the exhaust belts need to be changed. We also found that on RTU 2 (kitchen) the second stage cooling was not firing on. We did jump the stage and it fired on. This can be caused by either a thermostat programming issue or bad thermostat. Units were cooling upon departure.
