Tech found 3 system. Rtu closet to building is operating at this time. Rtu in the middle tech found disconnect in the off position upon further inspection technician found no od fan motor blade technician can not get a model and serial due to being rubbed off. And not able to read it. Technician also found high amounts of wasp nests and dirt divers in the heat strips compartment. Technician does recommend replacing due to age and other potential issues. Will need to replace fan blades if they want a further diagnose in the refrigerant side. Rtu s#0M1H in the back of the building. Disconnect was in off position. Tech found compressor had no wires connected had been removed and plastic cover in the heat strip compartment. Tech did ohm out compressor and found it in causation. Tech also found sensing bulb txv was broken off. 8LBS 3oz r22.