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TM 9-2320-364-34-1
8. FAULT CODE 050 OR 052: TOO MANY NO START ATTEMPTS OR NO START
SAFETY TIME EXCEEDED (CONT).
3.
KNOWN INFO
TEST OPTIONS
WARNING
Fuel level OK (checked at
Read WARNING
Visual inspection.
on Page 2-766.53
operational level).
Arctic heater intake port checks
REASON FOR QUESTION
OK at unit level.
If measured fuel is between 0.62
Arctic heater exhaust port and
Does fuel metering pump de-
and 0.65 (18.64 and 19.36 ml),
exhaust tube checks OK at unit
liver 0.62 to 0.65 ounces
arctic heater fuel metering pump
level.
is OK.
(18.64 to 19.36 ml) fuel to arc-
Arctic heater fuel lines check OK
tic heater during a start
at unit level.
cycle?
Arctic heater fault code 050 not
active.
POSSIBLE PROBLEMS
If arctic heater does not oper-
Arctic heater fuel metering pump
ate, go to Step 2 of this Fault.
faulty.
Arctic heater fuel system not
If no or low fuel is delivered
primed.
and audible clicking is heard
Arctic heater flame sensor faulty.
from fuel metering pump, go to
Arctic heater glow pin faulty.
Step 4 of this Fault.
NO
If fuel metering pump delivers
less than 0.62 ounces (18.64
ml) of fuel, replace fuel meter-
ing pump (TM 9-2320-364-20).
Verify repair, go to Step 7 of
this Fault.
YES
Go to Step 6 of
this Fault.
2-528
81
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