TM 5-3805-261-23-1
ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0008 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
g. Place heater switch in LOW speed
38. Heater Will Not Operate or
position and touch meter positive
Will Not Operate in High
lead to wires connected to switch at
Speed or Low Speed Position
fan. Observe meter reading.
(CCE Machine) - Continued.
HEATER
FAN SWITCH
BLACK LEAD
15A FUSE
TO AMMETER
397-2439
+ TERMINAL
h. Place heater switch in all HIGH
1. If voltage is not indicated in either Step
speed positions and touch meter
g or h, replace heater switch (WP 0212
positive lead to wires connected to
switch at fan. Observe meter
2. If voltage is not indicated in both Steps
reading.
g and h, go to Test 2.
1.
If voltage is indicated in both Steps g
and h, replace defective fan motor(s)
disconnect switch in OFF position.
Place battery disconnect switch in
OFF position. If the problem still
exists, go to Test 2.
2.
Test heater switch for continuity.
a. Place battery disconnect switch in
OFF position.
b. Completely disconnect heater
switch harness.
c. Set multimeter to appropriate ohm
(Ω) range.
0008 00-32
