TB 9-2320-302-13&P-3
A/C TROUBLESHOOTING PROCEDURES - CONTINUED
0013 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
A/C ELECTRICAL SYSTEM - CONTINUED
Evaporator Assembly Works But 6. Verify system for normal high side
1. If system pressure is within
4.
operating pressure (WP 0015 00).
parameters, replace high pressure
Compressor Does Not -
switch on receiver/dryer (WP
Continued.
2. If system pressure is not within
parameters, inspect air conditioner
system for leaks (WP 0015 00).
Return equipment to normal condition.
7. Verify power at high pressure switch on
receiver/dryer.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
(b) Set A/C fan switch to the OFF
position (WP 0004 00).
(c) Disconnect wiring connector at
high pressure switch on receiver/
dryer (yellow and green wires) (WP
(d) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
(e) Set A/C fan switch tothe ON
position (WP 0004 00).
(f) Check for 24 VDC on yellow wire
1. If 24 VDC is indicated, replace
terminal on high pressure switch
green wire from high pressure
connector to vehicle ground.
switch.
2. If 24 VDC is not indicated,
proceed to next step.
8. Verify power on yellow wire of RFI filter
harness.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
(b) Set A/C fan switch to the OFF
position (WP 0004 00).
(c) Disconnect yellow wire connector
RFI filter harness (WP 0017 00)
(next to A/C bulkhead fittings on
floor of cab).
(d) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
0013 00-14