Chery QQ - Air Exists in Refrigeration System; Symptom Inadequate Temperature Reduction

Chery QQ Service Manual
Fault symptom
of refrigeration
system
Possible reasons Fault diagonosis Troubleshooting action
High pressure at both
the low and high
pressure sides even
if the engine runs at
a very low rotation
speed.
Good performance
cannot be played
due to excessive
refrigerant in the
system
Insufficient
refrigerating of
condensator
Excessive refrigerant in
circulation
Excessive charge of
refrigerant
Insufficient refrigerating
of condensator
Radiator rib of
condensator is blocked or
the motor of fan has fault.
（1）clean the condensator
（ 2 ） check the working
conditions of fan’s motor
（3）if （1）and（2）is normal，
check the amount of
refrigerant and charge
appropriate amount of
refrigerant.
7. Air exists in refrigeration system
Symptom：inadequate
temperature reduction
Note：
when
refrigeration system is open to charge refrigerant without evacuating, the meter will
show reading.
Fault symptom
of refrigeration
system
Possible reasons Fault diagonosis Troubleshooting action
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