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Page Title:
AIR CONDITIONER DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
HEATER/AIR CONDITIONER
S
VOLTAGE TEST
WITCH
SCREW
(1) Set multimeter to volts dc.
(2) Connect multimeter positive lead (+) to
heater/air conditioner switch where
light green wire connects pin 1.
(3) Connect multimeter negative lead () to
PANEL
known good ground.
(4) Connect negative battery cable to
negtive side of battery (Para 8-42).
(5) Turn engine start switch to START
position, START ENGINE
(TM 10-3930-673-10).
(6) Turn heater/air conditioner switch to
A/C (TM 10-3930-673-10)
(a) If 24 vdc is present, go to Step 4 of
this fault.
(b) If 24 vdc is not present, replace
heater/air conditioner switch
(Para 17-9).
8 1 2 3
(7) Turn heater/air conditioner switch OFF
7 4 5 6
(TM 10-3930-673-10)
(8) Turn engine start switch to OFF
LIGHT GREEN
W
position (TM 10-3930-673-10).
IRE
(9) Disconnect negative battery cable from
negative side of battery (Para 8-42).
THERMOSTAT
VOLTAGE TEST
(1) Remove seat (Para 16-12).
(2) Set multimeter to volts dc.
(3) Connect multimeter positive lead (+) to
thermostat where light green wire
connects.
(4) Connect multimeter negative lead () to
known good ground.
(5) Connect negative battery cable to
negative side of battery (Para 8-42).
(6) Turn engine start switch to START
position, START ENGINE
(TM 10-3930-673-10).
(7) Turn heater/air conditioner switch to
A/C (TM 10-3930-673-10)
(a) If voltage is present, go to Step 5
of this fault.
(b) If voltage is not present, repair light
green wire (Para 8-48).
(8) Turn heater/air conditioner switch OFF
(TM 10-3930-673-10)
(9) Turn engine start switch to OFF
position (TM 10-3930-673-10).
(10) Disconnect negative battery cable from
negative side of battery (Para 8-42).
TR01110
2-453
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