ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
Table 4-2. Unit Maintenance Troubleshooting
Test or Inspection
1. AIR CONDITIONER WILL NOT START
Disconnect input power before performing internal electrical troubleshooting. Voltages used
Check to see if input power has been disconnected.
Connect input power.
Make sure that power is 208 volt, 3-phase, 50/60 hertz.
Connect correct input power.
Check operation of circuit breakers (CB1-CB2).
Check operation of phase relay (K6).
Check all terminals and internal wiring within electric box for tightness and damage. Tighten terminals. If
wires are damaged, contact Direct Support Maintenance.