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 3. Inspect Heater Duct and
Air When A/C
Upper Air Vents.
Temperature Control Is
1. Turn ignition switch to the off posi-
Set to Maximum Cold -
tion (TM 5-2420-231-10).
Continued
2. Remove headliner (WP 0346).
3. Inspect right upper air duct (Figure
Air Duct Has Debris - Remove debris
19, Item 1) and left upper air duct
and install headliner (WP 0346).
(Figure 19, Item 2) for debris,
Proceed to Test Step 9.
cracks, bends, warping, damage,
Air Duct Is Cracked, Bent, Warped, or
or disconnections.
Damaged - Replace upper air duct (WP
0350).
Proceed to Test Step 9.
Air Duct Is Disconnected - Connect
upper air duct (WP 0350).
Install headliner (WP 0346).
Proceed to Test Step 9.
Figure 19. Upper Air Ducts.
0030