TM 9-4120-402-14
Table 4-3. UNIT TROUBLESHOOTING - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. REDUCED HEATING 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 setting of potentiometer TEMPERATURE control.
Set control to fully WARM; then, if condition improves, adjust properly.
Step 3. Check that the louvers in the conditioned aiirntake and discharge grilles are properly adjusted.
Adjust louvers properly.
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