ELECTRICAL TROUBLESHOOTING
TM 5-3805-263-14&P-3
INDIVIDUAL CIRCUIT DESCRIPTION
HEATER
Power for the heater is through the 60 amp circuit breaker, a 20 amp fuse, two
terminal boards, then to the two fan control switches.
Each switch controls the power to the respective fan motor and resistor. When
the switch is in the center position the fan is off. When the switch is in the upper
position, power goes to the motor directly for high speed. When the switch is in the
lower position, power goes from the switch, through a resistor, then to the motor for
low speed.
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