TB-9-2320-302-13-P-3
CREW PROTECTION KIT; AIR CONDITIONING KIT PART 3 OF 3
TECHNICAL BULLETIN; OPERATOR’S, UNIT, AND DIRECT SUPPORT, MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LIST
MARCH 2008
TB-9-2320-302-13-P-3 - Page 66 of 240
TB 9-2320-302-13&P-3
A/C TROUBLESHOOTING PROCEDURES - CONTINUED
0013 00
0013 00-2
GENERAL TROUBLESHOOTING - CONTINUED
3.
Frozen Evaporator Assembly
Coil - Reduced Air Flow -
Continued.
4. Inspect wiring harness for damage.
1. If damage is found, repair wire or
replace wiring harness (WP 0021
00).
2. If no damage is found, replace
power relay (WP 0021 00).
A/C ELECTRICAL SYSTEM
WARNING
Before removing any component of electrical system, be sure
battery disconnect switch is in OFF position. Remove all jewelry
before working on electrical system. Failure to follow this warn-
ing may cause injury to personnel.
1.
A/C System Does Not Function.
1. Verify A/C fan switch is not in the OFF
position (WP 0004 00).
1. Select the ON position.
2. If ON/OFF switch is in the ON
position, proceed to next step.
NOTE
A/C power is present if the dome light is lit when the dome light
is turned ON.
2. Verify power to evaporator assembly.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
(b) Disconnect red wire connector and
black wire connector to evaporator
blower assembly (WP 0017 00).
(c) Turn ignition key switch to the ON
position. (TM 9-2320-363-10).
(d) Check for 24 VDC on red wire
connector to black wire connector
(ground).
1. If 24 VDC is indicated, proceed to
step 15.
2. If 24 VDC is not indicated,
proceed to next step.
3. Verify power at power relay wiring
harness.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
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