Chery T21 2014 Service Manual page 1343

Symptom
Pressure on low pressure side is normal or
slightly low, and pressure on high pressure
side is too high
Pressure on low pressure side is too high,
and pressure on high pressure side is too
low
Pressure on low pressure side is too low,
and pressure on high pressure side is too
high
Diagnosis Procedure
HINT:
Use the following procedures to troubleshoot the A/C system.
1
Vehicle brought to workshop
2
Check battery voltage
Standard voltage: 11 to 14 V
If voltage is below 11 V, recharge or replace the battery before proceeding to next step.
3
Customer problem analysis
4
Check panel diagnosis
a. Check each actuator and sensor code
 Indicator inspection
 Sensor inspection
Chery Automobile Co., Ltd.
Suspected Area
Surface of condenser (dirty)
Cooling fan (not operating)
Refrigerant (overcharged)
Air in refrigerant
Engine (overheating)
Compressor assembly belt (slip)
Compressor assembly (faulty)
A/C high pressure line (blocked)
Expansion valve (faulty)
(See page 31-19).
31 - AIR CONDITIONING
See page
31-102
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31-66
31-67
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31-99
31-99
31
31-96
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