TM 5-2420-231-23-1
0030
Table 1. Heating and A/C Troubleshooting Procedures - Continued.
030
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. A/C Does Not Blow Cold
Test Step 6. Low-Pressure Gauge
Air When A/C
Reading Above Normal and High-
Temperature Control Is
Pressure Gauge Reading Below
Set to Maximum Cold -
Normal.
Continued
1. Verify that low-pressure gauge and
Low- and High-Pressure Gauge
high-pressure gauge display the
Readings Are the Same - A/C
same pressure.
compressor is not engaging. Diagnose
the A/C compressor (WP 0032).
Proceed to Test Step 9.
Low-Pressure Gauge and High-
Pressure Gauge Readings Are Not
the Same - Proceed to step 2.
2. Evacuate the A/C system (WP
0364).
0030-29
