目录.p65

Air conditioner--Refrigerant

zThe pressure of high and

low pressure end is high.

zThere is no bubble on

window when engine

speed decreases.

zToo much refrigerant in

system incurs this.

zHeat 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.

zFilled refrigerant is too

much.

zHeat 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.

zThe pressure of high and

low pressure end is high.

zPipeline of low pressure

end is too hot to contact.

zThere 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.

zThere is air in cooling

system.

zIt 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: i f cooling system is

opened, and it does not

take out vacuum when

filling refrigerant, this

state will happen.

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