Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 323 / 1956

PAGE 5
Feb 28/07 2D21
21-50-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
CHART 1 (Sheet 4 of 4)
TROUBLESHOOTING (AIR CONDITIONING SYSTEM)
Trouble Cause Remedy
System will not produce
sufficient cooling. (continued)
Refrigeration (continued)
Clogged screen in Purge system and replace
expansion valve. expansion valve.
Clogged screen in receiver Purge system; replace
dehydrator. receiver dehydrator.
Excessive moisture in Purge system; replace
system. receiver dehydrator.
Air in system. Purge, evacuate and
charge system. (Replace
receiver dehydrator)
Excessively noisy system. Mechanical
Loose or excessively worn Tighten or replace as
drive belt. required.
Noisy clutch. Remove clutch for service
or replacement
as necessary.
Compressor noisy. Check mountings and
repair; remove compressor
for service or replacement.
Compressor oil level low. Fill with correct amount of
specified oil.
Electrical
Defective winding or Replace or repair as
improper connection in necessary.
compressor clutch coil.
Refrigeration
Excessive charge in system. Discharge excess
refrigerant until high
pressure gauge drops
within specifications.
Low charge in system. Check system for leaks;
charge system.
Excessive moisture in Replace dehydrator; purge,
system. evacuate, and charge
system.