Diagnostic on 4 RTU systems Rtu11 smoke detector going into alarm Removed detector and blew out, system still green now That enunciator for 11 needs new wire pulled to it Electrician said they'd get it Rtu12 smoke detector no power Needs wired into the unit on the roof Jim approved repairs Pull wire inside the unit and connect. Rtu13&14 both have failed transformers Jim approved replacing the failed transformers.