TM 5-3805-296-23-2
0133
Table 1. A/C Does Not Blow Cold When Maximum Cool Setting Is Selected Continued.
0133
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 8. Low Pressure Gauge is
A/C Does Not Blow Cold
Normal and High Pressure Gauge
When Maximum Cool
Bounces is Unsteady.
Setting Is Selected
Continued
Perform Refrigerant System
No Leaks Found Air in refrigerant
Inspection and test refrigerant system
system. Recover refrigerant, and
evacuate and recharge refrigerant
for leaks (WP 0178).
system (WP 0248).
Proceed to Test Step 29.
Leaks Found Recover refrigerant
(WP 0248). Repair or replace leaking
A/C component. Evacuate and
recharge refrigerant system
(WP 0248).
Proceed to Test Step 29.
Test Step 9. Low Pressure Gauge is
Below Normal and High Pressure
Gauge is Normal to Below Normal.
Operate A/C on maximum cool setting
A/C High Pressure Hose(s)
(TM 5-3805-296-10) and inspect for
Restricted Recover refrigerant
frost and cold spots on A/C high
(WP 0248). Replace restricted A/C
pressure hoses and A/C receiver dryer
high pressure hose(s) (WP 0477).
(WP 0477).
Evacuate and recharge refrigerant
system (WP 0248).
Proceed to Test Step 29.
A/C Receiver Dryer Restricted
Recover refrigerant (WP 0248).
Replace A/C receiver dryer (WP 0328).
Evacuate and recharge refrigerant
system (WP 0248).
Proceed to Test Step 29.
Test Step 10. Low Pressure Gauge
Drops into Vacuum Range and High
Pressure Gauge Drops Below
Normal.
Moisture in refrigerant system.
Moisture in Refrigerant System
Recover refrigerant (WP 0248).
Replace A/C receiver dryer (WP 0328).
Evacuate and recharge refrigerant
system (WP 0248).
Proceed to Test Step 29.
0133-5
