Piper Cherokee Six - Page 719

Insufficient
re-
frigerant
in
system.
Clogged
screen
in
expansion
valve.
Expansion
valve
thermal
bulb
has
lost
charge.
Clogged
screen
in
receiver
dehydrator.
Excessive
moisture
in
system.
Air
in
system.
PIPER
CHEROKEE
SIX
SERVICE
MANUAL
TABLE
XIII-IV.
TROUBLESHOOTING
CHART
(AIR
CONDITIONER)
(cont.)
Trouble
Cause
Remedy
System
will
not
produce
sufficient
cooling.
(cont.)
Mechanical
(cont.)
Evaporator
filter
clogged.
Clean
with
cleaning
solvent
to remove
cigarette
tars.
Refrigeration
Recharge
system
until
bubbles
disappear
in
receiver
dehydrator
and
gauge
readings
stabilize
to
specifi-
cations.
13-14.
Purge
system
and
re-
place
expansion
valve.
13-38
Purge
system:
replace
expansion
valve.
Purge
system:
replace
receiver
dehydrator
Purge
system:
replace
receiver
dehydrator
1 3-2S.
Purge
,evacuate
and
charge
system
13-13
and
13-14.
(Replace
receiver
dehydrator.
13-28.)
ACCESSORIES
AND
UTILITIES
Revised
11
4
83
315