TM 9-4520-272-14&P
0008 00
connection between the operator
damaged in any way and/or the
control box and the operator control box
cable is cut or damaged.
cable is secure. Ensure that the
connector is not damaged in any way
and that the cable is not cut or
damaged.
Step 2. Turn power switch OFF. Ensure
Step 2. Secure the connection
that the connection between the main
between the main control box and
control box and the operator control box
the operator control box cable. Notify
cable is secure. Ensure that the
unit maintenance if connector is
connector is not damaged in any way
damaged in any way and/or the
and that the cable is not cut or
cable is cut or damaged.
damaged.
Step 3. If problem has not been
corrected, notify unit maintenance.
19. Heater starts, shuts down,
Step 1. This fault code indicates that the
Step 1. Fill internal fuel tank or
and displays fault code: H511
engine failed to start after 3 tries. Check
ensure there is adequate fuel in the
to ensure that there is adequate fuel in
bulk fuel supply.
the fuel tank or in the bulk fuel supply.
Step 2. Turn power switch OFF. Open
Step 2. If engine throttle shutdown
engine bay access door and inspect
cable is stuck or damaged in any
location of engine throttle. Ensure that
way, notify unit maintenance.
the engine throttle cable is not stuck in
OFF position.
Step 3. If problem has not been
corrected, notify unit maintenance.
20. Heater starts, shuts down,
Step 1. This fault code indicates that the
Step 1. Repair any tears in the
and displays fault code: H311
LCFH has detected carbon monoxide at
flexible air inlet duct with duct tape.
the operator control panel. Evacuate
Replace flexible air duct if damage
any personnel that may be in the shelter
cannot be completely repaired with
and look for signs of carbon monoxide
duct tape.
poisoning. Check the flexible air inlet
duct and ensure that it does not have
any rips, tears, or other damage that
would allow combustion exhaust to
enter the inlet air flow.
Step 2. Check and ensure that the
Step 2. Attach flexible air inlet duct
flexible inlet air duct is securely
to air inlet duct adapter lock in place
attached to the air inlet duct adapter on
securely.
the LCFH.
Step 3. Ensure that the shelter opening
Step 3. Move LCFH so that
is not downwind of the LCFH is such a
combustion exhaust does not enter
way as to allow combustion exhaust to
shelter during LCFH operation.
enter the shelter.
Step 4. Determine if there are any other
Step 4. Move sources of carbon
sources of carbon monoxide (vehicles,
monoxide a safe distance away from
generators, etc.) that may be running
the shelter and the LCFH.
nearby. Determine if the combustion
exhaust from those sources may be
Step 5. Restart LCFH. If fault
getting into the LCFH airflow.
reoccurs, stop use of LCFH and
notify Unit Maintenance.
21. Heater starts, shuts down,
Step 1. This fault code indicates that the
Step 1. Repair any tears in the
and displays fault code: H312
LCFH has detected carbon monoxide at
flexible air inlet duct with duct tape.
the cabinet mounted carbon monoxide
Replace flexible air duct if damage
0008 00-6
