Piper Navajo Chieftain PA-31-350 Service Manual page 915

NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE XIV-XV. TROUBLESHOOTING CHART (AIR CONDITIONER) (cont)
Gauge Indication
Probable Causes
Remedy
High suction
pressure(cont.)
Compressor drive
belt slipping.
Adjust belt tension.
Magnetic clutch
slipping.
Strainer at suc-
tion service
valve clogged.
Leaking or broken
compressor
valves.
Cause
Check electrical
circuit for correct
voltage to clutch
coil. Clean clutch
surfaces of oil.
Clean with solvent
and replace.
Replace valves with
valve kit.
Remedy Trouble
System produces
no cooling.
Electrical
Open circuit
breaker.
Reset circuit
breaker.
Broken or dis-
connected elec-
trical wire.
Broken or dis-
connected ground
wire.
Clutch coil
or solenoid
burned out or
disconnected.
Check all termi-
nals for loose
connections: check
wiring for hidden
breaks.
Check ground wire
to see if loose.
broken, or dis-
connected.
Check current flow
to clutch or sole-
noid - replace if
inoperative.
Reissued: 9/23/80
4H23
ACCESSORIES AND UTILITIES