POWER PLANT HEATER FAILS TO START WHEN RUN-OFF-START SWITCH IS HELD IN START POSITION

TM 9-2320-386-10

Table 3-1. Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

35. POWER PLANT HEATER FAILS TO START WHEN RUN-OFF-START SWITCH

IS HELD IN START POSITION

WARNING

Exhaust gases can kill. Do not operate power plant

heater in closed area occupied by personnel. Doing so

may result in injury to personnel.

CAUTION

Do not operate fuel burning personnel heater and

power plant heater at the same time. Doing so may

result in overworked electric fuel pump.

NOTE

If RUN-OFF-START switch is turned to RUN posi-

tion before red indicator light illuminates, heater will

not operate.

Step 1. Press PRESS-TO-TEST button on heater control box to check opera-

tion of circuit.

If red indicator light does not illuminate, notify unit maintenance.

Step 2. Check fuel level on fuel gauge.

Fill fuel tank if necessary.

Step 3. Check to see if power plant heater shutoff cock is closed (para. 2-4).

Open power plant heater shutoff cock.

NOTE

Select HI position if engine is cold. Select LO position

if engine is already well heated. When in HI position,

heater will automatically change to LO position when

coolant temperature exceeds 190F (88C), and auto-

matically change to HI position when coolant temper-

ature drops below 120F (49C).

36. HEATER FAILS TO CONTINUE BURNING

Check fuel level on fuel gauge.

Fill fuel tank if necessary.