Piper SARATOGA PA-32-301 Maintenance Manual page 117

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
CHART 2103. TROUBLESHOOTING (AIR CONDITIONING SYSTEM) (cont)
Trouble
Cause
Remedy
System will not produce
sufficient cooling. (cont)
Refrigeration
Insufficient refrigerant in
system.
Recharge system until bub-
bles disappear in receiver
dehydrator and gauge read-
ings stabilize to specifi-
cations.
Clogged screen in expan-
sion valve.
Expansion valve thermal
bulb has lost charge.
Clogged screen in receiver
dehydrator.
Excessive moisture in
system.
Air in system.
Purge system and replace
expansion valve.
Purge system; replace ex-
pansion valve.
Purge system; replace re-
ceiver dehydrator.
Purge system; replace re-
ceiver dehydrator.
Purge, evacuate and charge
system. (Replace receiver
dehydrator)
Excessively noisy system. Electrical
Defective winding or im-
proper connection in com-
pressor clutch coil.
Replace or repair as nec-
essary.
Mechanical
Loose or excessively worn
drive belts.
Noisy clutch.
Tighten or replace as re-
quired.
Remove clutch for service
or replacement as neces-
sary.
21-52-00
Page 21-11
Revised: August 11, 1983
1E21