Geely FC Workshop Manual page 227

(1) Refrigerant system with normal function.
Meter reading
Low pressure end:
0.15-0.25Mpa
High pressure end:
1.37-1.57Mpa
(2) Water in cooling system.
Situation: too cold periodically, then lose cooling degree.
Phenomenon
W h e n c o o l i n g s y s t e m i s
working, the pressure in low
pressure end changes to
vacuum or normal periodically.
(3) Lack refrigerant
State: lack refrigerant
Phenomenon
The pressure of high and low
pressure end is low.
There is air bubble on
window.
Refrigerant leaks.
216
Air conditioner--Refrigerant
Possible reason
Water vapor enters refrigerant
system, and freezes on the ex-
pansion valve, the system
stops cycle in short time, when
ice melts, it returns to normal
again.
Possible reason
Some part of refrigerant system
leaks.
Diagnose
Dryer locates at full humidity
state.
Water vapor of refrigerant
freezes on the outlet orifice
of expansion valve to ob-
stacle freezing cycle.
Diagnose
Refrigerant in system lacks.
C o o l i n g d e g r e e i s n o t
enough.
Method
(1)Change the condenser.
(2)Remove water in pipeline
with method of taking out
vacuum repeatedly.
( 3 ) F i l l a p p l i c a b l e n e w
refrigerant.
Method
(1)Check it with leakage
measurer, if necessary, re-
pair it.
(2)Fill refrigerant to applicable
quantity.
(3)If meter pressure reading is
0, after checking and repair-
ing leaking position, take out
vacuum.