Chery T21 2014 Service Manual page 1342

31 - AIR CONDITIONING
Symptom
A/C insufficient cooling
31
Too much noise in system
Pressure on low pressure side switches
between normal and vacuum during
operation
Pressure is low on both low and high
pressure sides, cooling performance is
insufficient
Pressure is low on both low and high
pressure sides, frost exists on line from
condenser to A/C unit
Vacuum occurs on low pressure side, and
pressure on high pressure side is too low,
frost exists on lines on both sides of
condenser or expansion valve
Pressure is too high on both low and high
pressure sides
16
31–
Suspected Area
Leak in system
Refrigerant (insufficient)
Refrigerant (overcharged)
Air in refrigerant
Moisture in refrigerant
Condenser (dirty or blocked)
Expansion valve (dirty or blocked)
Evaporator core (dirty or blocked)
A/C high/low pressure line (dirty or
blocked)
Blower speed switch (damaged)
Blower motor (damaged)
Compressor assembly belt (loose)
Compressor assembly belt (slip)
Compressor assembly clutch bearing
(worn and excess clearance)
Compressor assembly solenoid coil (faulty
or loose joint)
Compressor assembly belt (over tightened)
Compressor assembly mounting bolt
(loose)
Cooling fan blade (distorted)
Refrigerant oil (too low)
Moisture in refrigerant (excessive)
A/C system (leaked)
Refrigerant (insufficient)
Condenser (dirty or blocked)
Moisture in refrigerant (excessive)
Expansion valve (dirty or blocked)
A/C line (leaked)
Condenser (dirty or blocked)
Expansion valve (faulty)
Refrigerant oil (excessive)
Chery Automobile Co., Ltd.
See page
31-64
31-66
31-66
31-67
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31-102
31-80
31-80
31-94
31-70
31-73
31-99
31-99
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-
31-99
31-99
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31-68
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31-64
31-66
31-102
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31-80
31-94
31-102
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31-68