Piper Lance II - Page 560

LANCE II SERVICE MANUAL
TABLE
XIV-IV.
TROUBLESHOOTING
CHART
(AIR
CONDITIONER)
(cont.)
Trouble
Cause
Remedy
System produces no
cooling. (cont.)
Electrical
(cont.)
Thermostat sensing
element defective.
Blower motor dis-
connected or burned
out.
Check thermostat and
cabin
comfort
control
panel.
Check current flow
to blower motor.
Repair or replace if
inoperative.
Mechanical
Loose or broken drive
belt.
Compressor
partially
or completely frozen.
Expansion valve stuck
in open position.
Replace drive belts
and/or tighten to
specifications, 14-22
and 14-23.
Remove compressor
for
service or replacement,
14-18.
Replace expansion
valve, 14-35.
Refrigeration
Broken refrigerant line.
Leak in system.
2L8
Examine
all
lines for
evidence of breakage
by external stress or
rubbing wear.
Evacuate
system,
apply
static charge, leak
test system, and repair
leak as necessary, 14-13
and
14-9.
ACCESSORIES AND UTILITIES
Issued: 1/3/78