Air conditioner--Refrigerant
z The pressure of high and
low pressure end is high.
z There is no bubble on
window when engine
speed decreases.
z Too much refrigerant in
system incurs this.
z Heat dispersion of con-
denser is bad.
(1)Clean the condenser.
(2)Check the function of
cooling fan.
(3)If those two items above
are normal, check the re-
frigerant quantity. Fill
applicable refrigerant.
z Filled refrigerant is too
much.
z Heat dispersion of con-
denser is bad
¡ú¡ú
¡ú¡ú
¡úheat dis-
persion sheet of con-
denser is obstructed or fan
engine has malfunction.
Phenomenon Possible reason Diagnose Method
State: cooling degree is not enough.
z The pressure of high and
low pressure end is high.
z Pipeline of low pressure
end is too hot to contact.
z There is bubble on
window.
Air enters cooling system. (1)Check whether the Re-
frigerant oil is too dirt or
lack.
(2)Take our vacuum and fill
new refrigerant.
z There is air in cooling
system.
z It does not take out
vacuum completely.
Phenomenon Possible reason Diagnose Method
State: cooling degree is not enough.
(6) Refrigerant is too much or the radiating fin of condenser is bad
(7) Air enters cooling system
Note: if cooling system is
opened, and it does not
take out vacuum when
filling refrigerant, this
state will happen.
218
To Next Page
Loading...
