TM9-4120-370-14
TO35E9-229-1
TABLE 4-2. TROUBLESHOOTING (cont.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Check air flow out of conditioned air (evaporator) discharge grille. If air flow volume is low:
a. Adjust conditioned air (evaporator) intake grille louvers.
b. Clean and service, or replace conditioned air filter element. (See para 4-32.)
c. Clean and service, or replace, mist eliminator. (See para 4-33.)
d. Clean evaporator coil and entire evaporator system. (See para 4-68.)
Step 3. Check adjustment of fresh air damper and/or CBR filter if installed.
Adjust properly.
Step 4. Check operation of Temperature control thermostat (S1).
a. Inspect sensing bulb and capillary for damage or leakage. Replace entire control if bulb is damaged
or leaking.
b. Test Temperature control thermostat. (See para 4-39.) Replace entire control, if defective.
Step 5. Contact direct support maintenance for refrigeration system troubleshooting.
4-43
