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3E-34
AIR CONDITIONING
CONTROLS
Check Adjustments
AIR LEAKS
Check
•
Vents
•
Door seals
•
Window seals
8ystem Troubltthootlng
PRELIMINARY
DIAGNOSIS
MAGNETIC CLUTCH
Refer to Magnetic
Clutch Troubleshooting
Charts
REFRIGERATION
SYSTEM
DIAGNOSIS
CHECK DISCHARGE AIR TEMPERATURE
f> Set thermostat at max cool
#
Set engine speed at 1500 rpm
#
Check discharge air temperature with
thermometer
#
Discharge air temperature must cor
respond to ambient air temperature
as shown in Normal Operating Temp
eratures and Pressures Chart
BLOWER
Check at all
speeds
System cools
and cycles
properly
System does
not cool or
cycle
System cycles
but at Incorrect
temperature
Install gauges and
check pressures
to diagnose prob
lem. See Pressure
Diagnosis Chart to
correct.
Cools and cycles
properly
Road test to verify proper operation
AIR DISCHARGE
CONNECTING DUCTS
Check for seal teaks and
alignment
Check thermostat
capillary tube for
proper installation.
Install correctly and
recheck discharge
air temperature.
System cycles
but at Incorrect
temperature
Replace
thermostat
70626
/sa
en.
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Table of Contents
Troubleshooting
