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TM 9-4120-389-14
Table 4-2. UNIT TROUBLESHOOTING- (cont.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
REDUCED COOLING CAPACITY.
Step 1.
Check that all doors, windows, and other openings in the room or enclosure are tightly
closed.
Tightly close all openings.
Step 2.
Check operation of temperature selector.
Set control at maximum COOLER; then, if condition improves, adjust properly.
If conditions do not improve, test mode selector switch. (See para. 4-41).
Replace defective mode selector switch.
4-47
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