TM 9-4120-402-14
Table 3-1. Operator Troubleshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
REDUCED COOLING CAPACITY. - continued
Step 2.
Check operation of TEMPERATURE control potentiometer.
Set control at maximum COOL, then, if condition improves, adjust properly.
Step 3.
Check that discharge and intake air grille louvers are properly adjusted. (Must be open.)
Adjust louvers properly.
Step 4.
Check that excessive hot, outside air is not being introduced through fresh air damper.
Fully close damper, then, if condition improves, adjust properly.
3-5