TM 9-2350-261-10
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
PERSONNEL HEATER
25. HEATER OVERHEATS AND STOPS.
Step 1. Check to see if heater air intake elbow, exhaust elbow, or
warm air outlet is blocked.
Remove whatever is blocking the heater system
.
(page 2-194).
26. HEATER OVERHEATS AND DOES NOT STOP.
Step 1.
Step 2.
Check to see if personnel heater fuel supply valve is OFF.
Turn personnel heater fuel supply valve OFF (page 2-195).
Allow heater to run for 2 to 3 minutes to burn off fuel in
heater. Heated air should change to cool air if fuel burns
off.
Disconnect electrical connector from heater.
Notify unit maintenance.
27. HEATER DOES NOT PUT OUT ENOUGH HEAT.
Step 1. Check to see if HI-LO switch is in LO position.
Move HI-LO switch to HI position (page 2-196).
28. ELECTRONIC EQUIPMENT HEATER KIT (M577A2 ONLY).
Step 1. Use steps 23 thru 27 for troubleshooting electronic
equipment heater kit. Heater is same as personnel heater.
ENGINE COOLANT HEATER
29. HEATER DOES NOT START WITH RUN-OFF-START SWITCH
HELD IN START POSITION. HEATER MOTOR RUNS.
Step 1. Check to see if fuel tank manual shutoff valve is closed.
Open fuel tank manual shutoff valve; M113A2, M106A2,
M1064 (page 2-26.1), M125A2, M1059 (page 2-26), and
M577A2, M1068 (page 4-35).
Change 3
3-15