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Page Title:
AIR CONDITIONER NOISY DURING OPERATION. |
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 TM5-4120-384-14
Table
5-1.
TROUBLESHOOTING-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Yellow appearance of sight glass is
caused
by
Step
1.
contamination in the refrigerant.
(See
Release
refrigerant.
a.
b.
Remove
(See
Purge
and
dry
system.
(See
c.
Install
new
d.
(See
(See
Leak
test
system.
e.
Evacuate system.
f.
(See
Recharge
with
refrigerant.
(See
g.
Step
2.
Check for yellow in sight glass after allowing
compressor to run for at least 1 hour.
Repeat
corrective
action
in
Step
1
above.
7.
AIR CONDITIONER NOISY DURING OPERATION.
(See
Step
1.
Check
expansion
valve.
Replace
if
defective.
Check
quench
valve.
(See
Step
2.
Replace
if
defective.
Check compressor for internal
noise
and
loose
Step
3.
(See para 5-33.)
mounting.
Repair
loose
mounting.
a.
Replace
compressor
if
defective.
b.
5-11
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