FAULT CODE 050 OR 052: TOO MANY NO START ATTEMPTS OR NO START SAFETY TIME EXCEEDED. (Cont) -726250905

TM 9-2320-364-34-1

Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a

direct short may result. Damage to equipment, injury or death to personnel may occur.

Fuel is very flammable and can explode easily. To avoid serious injury or death, keep fuel away from open fire

and keep fire extinguisher within easy reach when working with fuel. Do not work on fuel system when engine is

hot. Fuel can be ignited by hot engine.

NOTE

Audible clicking and low fuel flow from the fuel metering pump may indicate that the arctic heater fuel

system isn't primed. The arctic heater should self- prime itself within ten start attempts (five start

cycles).

If arctic heater does not operate, arctic heater may be in lockout mode due to too many start

attempts (code 050). Arctic heater lockout mode (code 050) is activated if arctic heater fails to start

after 20 successive start attempts (10 successive start cycles).

VISUAL INSPECTION

(1) Connect fuel line on arctic heater and

tighten screw (TM 9-2320-364-20).

(2) Check fuel in fuel tank. Add fuel if required

to ensure fuel is supplied to arctic heater.

(3) Turn arctic heater switch ON

(TM 9-2320-364-10).

(4) Observe arctic heater for proper

operation. Note if audible clicking is heard

from arctic heater fuel metering pump.

(5) When arctic heater shuts down after two

start attempts, turn arctic heater switch

OFF.

(6) Repeat Steps (3) through (5) four times or

until arctic heater operates normally.

(a) If arctic heater does not operate,

when arctic heater switch is turned

ON (lockout mode activated), go to

Step 5 of this Fault.

(b) If arctic heater fuel metering pump

fails to prime itself within ten start

attempts (five start cycles), replace

arctic heater fuel metering pump

(TM 9-2320-364-20).

primes itself within ten start attempts

(five start cycles), fault has been

corrected.

821

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