TB-9-2320-279-13-1
TECHNICAL BULLETIN; AIR CONDITIONING SYSTEM
OPERATOR’S, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LISTS
DECEMBER 2005
TB-9-2320-279-13-1 - Page 152 of 524
TB 9-2320-279-13-1
(0014-1 blank)/0014-2
0014
AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY
DRAFT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
INITIAL SETUP:
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Maintenance Level
Field Level Maintenance
Equipment Condition
Shut off engine (TM 9-2320-279-10).
Parking brake applied (TM 9-2320-279-10).
Wheels chocked (TM 9-2320-279-10).
Tools and Special Tools
Tool Kit, General Mechanic’s (Item 7, Appendix F)
Multimeter (Item 2, Appendix F)
Materials/Parts
None
Personnel Required
MOS 52C, Utilities equipment repairer (2)
References
TM 9-2320-279-10
TM 9-2320-279-20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
KNOWN INFO
AC heater/evaporator blower operates.
AC compressor operates.
POSSIBLE PROBLEMS
AC condenser core blocked or damaged.
AC compressor belts loose or damaged.
AC temperature control switch temperature
probe damaged or installed incorrectly.
AC condenser motor solenoid faulty.
AC condenser motor red wire faulty.
AC condenser motor ground wire faulty.
AC condenser motor faulty.
AC condenser assembly harness black wire
faulty.
AC harness wire 1155 faulty.
AC harness wire 1156 faulty.
AC condenser assembly harness green wire
faulty.
AC condenser motor solenoid ground wire
faulty.
1.
Is AC condenser core free
from damage and debris?
If AC condenser core
is damaged, recover
R-134a refrigerant
(WP 0050).
Replace
AC condenser core
(WP 0024) and AC
condenser dryer
(WP 0025).
Evacuate and charge
system (WP 0050).
Verify repair, go to
Step 14 of this fault.
If AC condenser core
is blocked with
debris, remove
blockage.
Verify
repair, go to Step 14
of this fault.
NO
YES
START
Read WARNING on
page 0014-3.
WARNING
TEST OPTIONS
Visual inspection.
REASON FOR QUESTION
If AC condenser core is
damaged or blocked, AC
system will not operate
properly.
Back to Top
