9-10-25 Teacher Lounge room W219. Carrier package unit AC system is not working and there is a burnt smell coming from the electrical control box. Spoke with Patrick on site. This is a 1999 enclosed package unit. Opened up the electrical control box found the incoming power connection on the contactor for the compressor burned off probably a loose connection. We did go ahead and replace the contactor at about a foot of #8 wire Restart the system system is pulling rated amps and working at this time