TB 9-2320-360-13&P-1
A/C DOES NOT OPERATE
KNOWN INFO
11.
WARNING
Read WARNING on
Power to A/C system OK.
page 0042 00-17.
A/C circuit wiring OK.
A/C controls OK (except for A/C
Is A/C condenser output hose
binary switch and A/C
hot?
thermostatic switch).
A/C receiver/dryer moisture
TEST OPTIONS
indicator indicates no moisture in
Visual Inspection.
system.
A/C binary switch OK.
REASON FOR QUESTION
A/C receiver/dryer sight glass
If A/C condenser output hose is hot
indicates no desiccant
A/C condenser is not working.
breakdown or oil in system.
A/C system is not leaking.
A/C system charge is not low.
A/C thermostatic switch OK.
Go to Step 13 of
No air or other contaminant in A/C
NO
this fault.
system.
A/C compressor OK.
A/C hoses are not restricted.
YES
A/C receiver/dryer OK.
A/C evaporator OK.
POSSIBLE PROBLEMS
A/C engine fan control circuit
faulty.
A/C condenser faulty.
A/C expansion valve faulty.
A/C system overcharged.
12.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING on
Power to A/C system OK.
Pressure Test.
page 0042 00-17.
A/C circuit wiring OK.
A/C Test Set Manifold Gage.
A/C controls OK (except for A/C
REASON FOR QUESTION
Does A/C test set gages
binary switch and A/C
If system low side and high side
indicate high system low side
thermostatic switch).
pressures are high, A/C
and system high side
A/C receiver/dryer moisture
condenser is faulty.
indicator indicates no moisture in
pressures after performing
system.
work package WP 0017 00?
A/C binary switch OK.
A/C receiver/dryer sight glass
indicates no desiccant
breakdown or oil in system.
A/C system is not leaking.
A/C system charge is not low.
A/C thermostatic switch OK.
Verify repair, go
No air or other contamination in A/
NO
to Step 23 of this
C system.
fault.
A/C compressor OK.
A/C hoses are not restricted.
A/C receiver/dryer OK.
YES
A/C evaporator OK.
Replace A/C condenser
A/C expansion valve OK.
(WP 0048 00), A/C receiver/
A/C system is not overcharged.
dryer (WP 0054 00), and
R-134a (WP 0056 00).
POSSIBLE PROBLEMS
Verify repair, go to Step 23
A/C engine fan control circuit
of this fault.
faulty.
A/C condenser faulty.
0042 00-16