TM 5-4120-370-14
T O 35E9-229-1
3-2. USE OF TABLE - Continued
TABLE 3-1. TROUBLESHOOTING (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4. 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.
Step 5. Check to be sure condenser air inlet and outlets are not obstructed.
Remove obstructions. On models F36T-2SA and F36T4-2SB the Condenser.
Discharge air deflector door must be open.
Step 6. With unit operating in COOL mode, check condition of refrigerant in sight glass. Check after 15 minutes of
operation in full DECREASE and COOL mode.
If indicator color is in the yellow zone or numerous bubbles appear in the window, turn selector switch
to OFF and contact unit maintenance.
