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Page Title:
AIR CONDITIONER NOISY DURING OPERATION. |
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 TM5-4120-383-14
Table 5-1.
TROUBLESHOOTING-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1.
Yellow appearance of sight glass is caused by
contamination in the refrigerant.
Release refrigerant.
(See para 5-11.)
a.
Remove dehydrator.
b.
(See para 5-30.)
Purge and dry system.
(See para 5-12.)
c.
Install new dehydrator.
d.
(See para 5-30.)
Leak Test System.
(See para 5-14.)
e.
f.
Evacuate system. (See para 5-15.)
(See para 5-16.)
Recharge with refrigerant.
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.
AIR CONDITIONER NOISY DURING OPERATION.
7.
Step 1.
Check expansion valve.
(See para 5-21.)
Replace if defective.
Step 2.
Check quench valve.
(See para 5-22.)
Replace if defective.
Step 3.
Check compressor for internal noise and loose
mounting. (See para 5-32.)
Repair loose mounting.
a.
Replace compressor if defective.
b.
5-11
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