Toyota Camry Manual page 28

AC–28
8. EXPANSION VALVE IMPROPERLY
MOUNTED/HEAT SENSING TUBE DEFECTIVE
(OPENS TOO WIDE)
Condition: Insufficient cooling
Symptom seen in
refrigeration system
Pressure too high on
both low and high
pressure sides
Frost or large amount
of dew on piping on low
pressure side
9. DEFECTIVE COMPRESSION COMPRESSOR
Condition: Does not cool
Symptom seen in
ref rigeration system
Pressure too high on
low pressure side
Pressure too low on
high pressure side
AIR CONDITIONING SYSTEM
Probable cause
Trouble in expansion
valve or heat sensing
tube not installed cor–
rectly
Probable cause
Internal leak in compres–
sor
– TROUBLESHOOTING
Diagnosis
Excessive refrigerant in
low pressure piping
Expansion valve opened
too wide
Diagnosis
Compression defective
Valve leaking or broken,
sliding parts
Remedy
(1) Check heat sensing
tube installed condition
(2) If (1) is normal, check
expansion valve
Replace if' defective
Remedy
Repair or replace com–
pressor