TABLE 3-1. OPERATOR TROUBLESHOOTING - Continued
TEST OR INSPECITON
Step 6. Check liquid sight indicator for bubbles in refrigerant.
Turn off. Contact your supervisor.
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 operation of ternperaturre control.
Set control to fully INCREASE (warmer); then, if condition improves, adjust properly.
Step 3. Check for restricted duct airflow.
Spread ducts properly.
Step 4. Check to be sure that excessive cold outside air is not being introduced through the fresh air darnper.
Fully close damper; then, if condition improves, adjust properly. Otherwise contact your