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 6-39 / 6-40 blank DURING START UP, THE BURNER TEMPERATURE HAS DROPPED BELOW NORMAL OPERATING LIMITS AND THE HEATER IS UNABLE TO RE-ESTABLISH IGNITION;-IGNITION TIMEOUT IN STAGE 04 CHECK/POSSIBLE CAUSE REF. REPAIR 13 CHECK WIRE HARNESS FOR CONTINUITY AND SHORTS CHECK 2 WIRES FROM THE VENT FAN BOARD TO THE LOGIC BOARD FOR CONTINUITY AND SHORT TO GROUND: P11-PIN12 TO P1-PIN3 P11-PIN4 TO P1-PIN12 CHECK FOR MV SIGNAL BETWEEN P11-PIN13 AND P11-PIN5 FOR BT SENSOR P11-PIN14 AND P11-PI N 6 FOR XT SENSOR CHECK FOR OPEN LINE BETWEEN P11-PIN13 TO CHASIS GROUND AND P11-PIN14 TO CHASIS GROUND IF ANY CHECK FAILS REPLACE WIRE HARNESS RESTART HEATER 14 DEFECTIVE VENT FAN BOARD REPLACE VENT FAN BOARD RESTART HEATER 15 DEFECTIVE LOGIC BOARD FOR REPLACE LOGIC BOARD RESTART HEATER