4-10. UNIT TROUBLESHOOTING. - Continued
Table 4-2. Unit Troubleshooting (Cont.)
TEST OR INSPECTION
POWER DISTRIBUTION BOX ASSEMBLY DOES NOT OPERATE. - CONT.
Circuit Breaker CB1 (1) continually trips.
Request Module C supervisor disconnect each shelter power cable from the power distribution box one
at a time and test circuit breaker CB1 (1) by setting to ON.
Troubleshoot electrical system of shelter. See TM 10-5411-200-14.
Request Module C supervisor set circuit breaker CB1 (1) to OFF. Test each power cable for continuity
and shorts between each wire in the cable.
Replace defective cable.
In the next 2 steps, some wiring must be tagged and disconnected to isolate shorts to individual
Request generator operator shut down generator. Test wiring, circuit breaker CB1 and connector
receptacles for shorts.
Replace shorted circuit breaker or power distribution box.
EMERGENCY LIGHT DOES NOT OPERATE PROPERLY.
Emergency light does not light when tested and charge light is not lit.
Check that ON/OFF switch is set to ON.
Set ON/OFF switch to ON.