Quantcast Table 31.  Troubleshooting - cont - TM-10-6640-233-10_91

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TM 10-6640-233-10 Table 3-1.  Troubleshooting (cont.) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 5.  EMERGENCY LIGHT FAILS TO COME ON WHEN A POWER FAILURE OCCURS. Check operation of the appropriate emergency light switch. a.  Ensure switch is in the ON position. b.  If emergency light still fails to operate, notify unit maintenance. 6.  CEILING LIGHT INOPERATIVE OR DIM. Step l.  Check fixture for burned out or weak lamps. Replace defective lamps. Step 2.  Check lamp starter by replacing with a known good starter. Replace defective starter. 7.  NO POWER AT ONE OR MORE CONVENIENCE (UTILITY) OUTLETS. Check and reset associated circuit breaker.  Refer to tables 2-2 and 2-3. If power is still not available at the outlet(s), notify unit maintenance. 8.  ENVIRONMENTAL CONTROL UNIT(S) FAIL TO OPERATE. Step 1.  Check that electrical input connector on ECU(s) is properly mated. Properly connect power input connector. Step 2.  Check and reset associated circuit breaker(s) located in Main Power Panel. If unit still fails to operate, notify unit maintenance. 3-3


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