TM 55-1930-209-14&P-16 Table 2-2.  Troubleshooting Procedures for Deckhouse and Voids Ventilation Systems Condition Possible Cause Suggested Acton 1 Barge ventilation a Circuit breaker P8 on a. Close circuit breaker system does not switchboard open operate b. All circuit breakers b. Close circuit breakers open on power panel 2 2. One or more vent a Circuit breaker open on a. Close circuit breaker fans does not power panel 2 for non- operate operating fan motor(s) b Electrical wiring defec- b Troubleshoot electrical tive to non-operating wiring* motor c. Fan motor defective c Replace fan motor d Controller defective d. Replace controller 3. Deckhouse or a Bearings need a. Lubricate according to voids fans noisy lubrication paragraph 2-14.3h b Fan blades dirty and b. Clean fan blades fans out of balance 4 Little or no air a. Blower covers dosed a. Open covers and secure entering voids in open position b. Emergency mechanical b. Open emergency shutoffs shutoffs dosed c. Void exhaust vent c. Uncover terminals terminals covered located on deckhouse top 5. Void fan 8 does a. Main switch off a. Push OFF button, dose not operate, start main switch and restart button ON b. Electrical wiring b. Troubleshoot electrical defective wiring* c. Fan motor defective c. Replace fan motor d Controller Defective d. Replace controller 6 Poor air circula- Port/starboard hatches Open and secure 17 tion in deckhouse; dosed hatches fans on 7 Ventilation emergency a Ventilation fans emerg- a Replace switch system activated; fans ency shutdown switch still operate defective b. Switchboard circuit b Replace circuit breaker breaker P8 defective c. Electrical wiring defective c. Troubleshoot electrical wiring* * Make sure electrical wiring is tight and free of frayed or broken cable insulation Ensure electrical connections are correct and in good repair. 2-11