TM-9-2540-207-14-P
HEATER, VEHICULAR COMPARTMENT, MODEL: A20
TECHNICAL MANUAL; OPERATOR, FIELD, AND SUSTAINMENT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2007
TM-9-2540-207-14-P - Page 202 of 288
TM 9-2540-207-14&P
6-38
6.5.47 F8 - IGNITION FLAME OUT (Design Iteration 3 Only)
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
.R
EPAIR
1
CHECK FOR CARBON BUILD-UP
IN IGNITOR HOLDER
4.4.1
CLEAN CARBON FROM IGNITOR HOLDER
RESTART HEATER
2
CHECK THAT IGNITOR HATCH IS
INSTALLED CORRECTLY
4.1.1
INSTALL IGNITOR HATCH
RESTART HEATER
3
CHECK THAT WIRE IS
CONNECTED TO IGNITOR
4.1.1
CHECK SPRING WASHER ON IGNITOR POST.
PLACE WIRE ON POST
REPLACE HATCH COVER
RESTART HEATER
4
DEFECTIVE IGNITOR
4.1.1
REPLACE IGNITOR
RESTART HEATER
5
CHECK FUEL SYSTEM AND FUEL
SUPPLY EXTERNAL TO HEATER
2.6
TABLE 2-1
RECONNECT FUEL SYSTEM, REMOVE ALL
UNNECESSARY BENDS AND FILL FUEL TANK
WITH FUEL
RESTART HEATER
6
CHECK FOR OBSTRUCTIONS IN
ALL DUCTING(INLET AND
EXHAUST) TO THE HEATER
REMOVE OBSTRUCTIONS
RESTART HEATER
7
DEFECTIVE FUEL INJECTOR
5.5.5
5.6.2
REPLACE FUEL INJECTOR
RESTART HEATER
8
CHECK FOR CARBON BUILD-UP
ON BURNER FUEL SHAFT
5.3.7
CLEAN BURNER FUEL SHAFT
9
CHECK FOR CARBON
ACCUMULATION OR
OBSTRUCTIONS IN BURNER
CARTRIDGE
5.3.7
REMOVE CARBON AND CLEAN BURNER
CARTRIDGE
10
DEFECTIVE FLAME TUBE AND
BURNER CHAMBER
5.3.2
5.3.5
REPLACE FLAME TUBE AND BURNER
CHAMBER
RESTART HEATER
11
DEFECTIVE BURNER CARTRIDGE
5.3.7
REPLACE BURNER CARTRIDGE
RESTART HEATER
12
CHECK FOR LOOSE
CONNECTIONS BETWEEN THE
VENT FAN BOARD AND THE
LOGIC BOARD
RECONNECT THE P11 PLUG INTO THE VENT
FAN BOARD AND THE P1 PLUG INTO THE
LOGIC BOARD
RESTART HEATER
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