TM 9-4120-403-14
TABLE 3-1. OPERATOR'S TROUBLESHOOTING (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Check operation of TEMPerature control thermostat.
Set control at maximum DECREASE and fan speed switch to HI SPEED; then, if condition
improves, adjust properly.
Step 3. Check to be sure that excessive hot outside air is not being introduced through the fresh air
damper.
Fully close damper; then, if condition improves, adjust properly.
3-6
