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TM5-4120-387-14
TABLE 4-2. TROUBLESHOOTING (Cont.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 7.
With unit operating in COOL mode, check condition of refrigerant in
sight glass.
a.
If color is yellow or a light hue of chartreuse, or if
numerous bubbles appear, turn air conditioner OFF, and noti-
fy your supervisor and Direct Support Maintenance.
b.
If color is green or a dark hue of chartreuse, but has a
milky appearance, or more than an occasional bubble appears,
thoroughly clean the condenser intake screen, condenser fan
guard, condenser coil, and entire condenser section to re-
move all obstructions.
c.
Clean and service, or replace mist eliminator.
(See para
4-26.)
d.
Clean evaporator coil and entire evaporator section.
(See
para 4-61.)
4-44
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