DRAFT
TM 5-4210-249-13&P-1
OPERATOR LEVEL MAINTENANCE
CREW CAB HEATER DOES NOT OPERATE PROPERLY
INITIAL SETUP:
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References
Equipment Conditions
Water pump engine OFF (WP 0022)
Engine OFF (TM 9-2320-347-10)
Wheels chocked (TM 9-2320-347-10)
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MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CREW CAB HEATER DOES NOT OPERATE PROPERLY
TFFT04081
Step 1.
Check if crew cab heater/air conditioner control switch is in ON position.
If crew cab heater/air conditioner control switch is not in ON position, place
switch in ON position.
Step 2.
Check if crew cab heater/air conditioner intake filter is free from blockage.
If crew cab heater/air conditioner intake filter is blocked, clear blockage.
0055-1