Geely FC Workshop Manual page 228

(4) Refrigerant cycle is poor
State: cooling degree is not enough
Phenomenon
The pressure of high and low
pressure end is low.
The pipeline from condenser
to expansion valve frosts.
(5) Refrigerant does not have any cycle.
State: not cool (sometime cool)
Phenomenon
Low pressure side is
vacuum, and pressure at
high pressure side is low.
The pipeline of front and
rear end of expansion
valve or adjuster frosts or
dews.
Air conditioner--Refrigerant
Possible reason
Refrigerant flow in adjuster
is obstructed by impurity.
Possible reason
Refrigerant flow in cool-
ing system is obstructed
by water vapor or dust.
Refrigerant flow is ob-
structed by expansion
valve.
Diagnose
Adjuster is obstructed.
Diagnose
Refrigerant does not flow.
Method
Change the condenser.
Method
(1)Check the expansion
valve.
(2)Remove the dirt in ex-
pansion valve with high
pressure air.
(3)Change condenser.
(4)Take out vacuum and fill
applicable refrigerant.
(5)If this is caused by ex-
pansion valve leakage,
change the valve.
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