SECTION V: TROUBLESHOOTING
TM 9-2350-256-20
WARNING
Remove all jewelry such as rings, dog tags ,
bracelets, etc. If jewelry contacts a metal
surface a direct short may result in instant
heating of tools, damage to equipment, and
injury or death to personnel.
A Disconnect wire 400 of switch panel to head lamps
and bulkhead wiring harness from connector at
HEATER CONTROL box. Place red lead of
multimeter in wire 400 and black lead to ground.
Turn MASTER switch on and check for voltage.
Turn MASTER switch OFF. If voltage is present, go
to step B. If voltage is not present, go to step L.
B Reconnect wire 400 of switch panel to head lamps
and bulkhead wiring harness to HEATER
CONTROL box connector. Remove two screws (1)
and release personnel heater control box front panel
(2) from personnel heater control box (3). Disconnect
heater control box to heater wiring harness from
HEATER CONTROL box. Place red lead of
multimeter on pin D of wire 405 and black lead to
ground. Turn MASTER switch on, HEATER
CONTROL switch to START, and check for
voltage. Turn MASTER and HEATER CONTROL
switches OFF. If voltage is present, go to step C. If
voltage is not present, replace HEATER CONTROL
box (see paragraph 6-12).
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