TM-9-2540-207-14&P Sustainment Manual for A20 Heater for M113 2540-01-396-2826 Download
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TM 9-2540-207-14&P 6-11 6.5.11 C6 - VENT SENSOR FAULT(Design Iteration 1 & 2 Only) VENT SENSOR HAS FAILED CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK THAT VENT SENSOR IS CONNECTED TO THE WIRING HARNESS.INSPECT WIRES AT CONNECTOR AND VENT SENSOR. 5.4.2 RECONNECT VENT SENSOR TO WIRING HARNESS RESTART HEATER 2 DEFECTIVE VENT SENSOR 5.4.2 REPLACE VENT SENSOR RESTART HEATER 3 DEFECTIVE WIRING HARNESS 5.5.6 REPLACE WIRING HARNESS RESTART HEATER 4 DEFECTIVE ELECTRONIC PROGRAMMED CONTROLLER BOARD 5.2.5 REPLACE ELECTRONIC CONTROLLER BOARD RESTART HEATER 6.5.12 C6 - VENT SENSOR FAULT (Design Iteration 3 Only) VENT SENSOR IS OUTSIDE NORMAL LIMITS; VENT RING SHORT, OPEN AND GROUNDED CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK THAT VENT SENSOR IS CONNECTED TO THE WIRING HARNESS. 5.4.2 RECONNECT VENT SENSOR TO WIRING HARNESS AND GROUND WIRE ATTACHED TO BURNER HOUSING RESTART HEATER 2 CHECK FOR DAMAGED WIRE FROM VENT SENSOR TO HARNESS PLUG REPLACE VENT SENSOR RESTART HEATER 3 CHECK WIRES FROM PLUG P10 TO VENT FAN BOARD (PLUG P11) FOR DAMAGE CHECK 2 WIRES FROM VENT SENSOR P10 TO VENT FAN BOARD P11 FOR CONTINUITY; P10-PIN A TO P11-PIN11 P10-PIN B TO P11-PIN3 4 CHECK J13 CONNECTOR SOLDER JOINTS ON THE VENT FAN BOARD FOR SHORT AND LOOSE JOINT REPLACE VENT FAN BOARD RESTART HEATER 5 CHECK WIRE HARNESS FOR CONTINUITY AND SHORTS CHECK 2 WIRES FROM THE VENT FAN BOARD TO THE LOGIC BOARD FOR CONTINUITY: P11-PIN12 TO P1-PIN3 P11-PIN4 TO P1-PIN12 CHECK FOR SHORT TO GROUND P1-PIN3 TO CHASSIS SHOULD BE OPEN LINE P1-PIN12 TO CHASSIS SHOULD BE OPEN LINE IF ANY CHECK FAILS REPLACE WIRE HARNESS RESTART HEATER 6 CHECK J8 CONNECTOR SOLDER JOINTS ON THE LOGIC BOARD FOR SHORT AND LOOSE JOINTS REPLACE LOGIC BOARD RESTART HEATER 7 DEFECTIVE VENT SENSOR RING 5.4.2 REPLACE VENT SENSOR RING RESTART HEATER 8 DEFECTIVE VENT FAN BOARD REPLACE VENT FAN BOARD RESTART HEATER 9 DEFECTIVE LOGIC BOARD REPLACE LOGIC BOARD RESTART HEATER