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WINDSHIELD  WIPERS  DO  NOT  RETURN  TO  PARK  POSITION (Continued)
ENVIRONMENTAL SYSTEM ELECTRICAL COMPONENT LOCATION AND CONFIGURATION LIST

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
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TM 55-1520-240-T CHAPTER 13 ENVIRONMENTAL CONTROL SYSTEM TROUBLESHOOTING CHAPTER OVERVIEW Chapter 13 contains procedures for Environmental Control System Troubleshooting.  Each environmental control system failure symptom is listed below.  Included in this Chapter are locations and views of all electrical connectors, receptacles, relays, and ground connections for the Environmental Control System.  Refer to TM 55-1520-240-23 for required Environmental Control System maintenance procedures. SYSTEM PARA HEATING AND VENTILATION 13-1 FAILURE SYMPTOM LIST HEATING AND VENTILATION SYMPTOM TASK AIR FLOW NOT FELT AT CABIN VENTS 13-1.4 AIR FLOW NOT FELT AT JETTISONABLE DOOR DEFROSTER DUCTS OR NOSE BUBBLE VENTS 13-1.4 AIR FLOW NOT FELT AT PILOT OR COPILOT AIR OUTLET 13-1.4 CABIN HEATER BLOWER CIRCUIT BREAKER WILL NOT STAY CLOSED 13-1.4 CABIN HEATER CONT CIRCUIT BREAKER WILL NOT STAY CLOSED 13-1.4 SYMPTOM TASK HEATER DOES NOT PROVIDE WARM AIR 13-1.4 HEATER FAN CANNOT BE HEARD RUNNING 13-1.4 HEATER FAN CANNOT BE HEARD RUNNING AFTER HEATER START SWITCH PRESSED AND RELEASED 13-1.4 HEATER FAN STOPS RUNNING IMMEDIATELY AFTER HEATER FAN SWITCH SET TO OFF 13-1.4 HEATER HOT (WITHOUT 74) HTR HOT (WITH  74) LIGHT COMES ON 13-1.4 SYSTEM DOES NOT RESPOND TO CHANGES IN CABIN TEMP SELECTOR SETTING 13-1.4 Change 23  13-2.1







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