TB 9-2320-360-13&P-1
0
A/C COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY
INITIAL SETUP
Maintenance Level
References
Unit Maintenance
TM 9-2320-360-20
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanic (Item 12, WP 0060 00)
Engine off (TM 9-2320-360-10)
Multimeter (Item 6, WP 0060 00)
Parking brakes applied (TM 9-2320-360-10)
Wheels chocked (TM 9-2320-360-10)
START
WARNING
1.
KNOWN INFO
TEST OPTIONS
Read WARNING on
A/C operates.
Visual Inspection.
page 0019 00-3.
magnetic switch (R31) supply and
REASON FOR QUESTION
control circuit OK.
If A/C condenser is blocked or
Air supply to engine fan control
Is A/C condenser free from
damaged, A/C compressor may
OK.
blockage, debris, and
cycle or run continuously.
damage?
POSSIBLE PROBLEMS
A/C condenser blocked with
debris.
A/C engine fan control solenoid
black wire faulty.
A/C engine fan control solenoid
faulty.
A/C engine fan control solenoid
circuit breaker faulty.
Remove blockage and
NO
A/C engine fan control solenoid 12
debris or notify DS
vdc supply circuit wiring faulty.
Maintenance of
A/C engine fan control solenoid
YES
YES
damage. Verify repair,
valve faulty.
go to Step 10 of this
A/C high pressure switch shorted.
fault.
A/C thermostatic switch
temperature probe installed
incorrectly.
A/C thermostatic switch faulty.
(0019 00-1 Blank)/0019 00-2