Low-Pressure Side Is Low

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK REFRIGERANT LEAKAGE. Check the refrigerant for leakage. < Ref. to INSPECTION , Refrigerant Leak Check. > NOTE: When the pressure on the high-pressure side is less than 0.69 Mpa: Go to Step 2.	Are there any refrigerant leakage?	Repair the refrigerant leakage.	Go to step 2.
2 FILL PROPER AMOUNT OF REFRIGERANT. Drain the refrigerant completely, and then refill the proper amount of refrigerant. Recovery: < Ref. to PROCEDURE , Refrigerant Recovery Procedure. > Refill: < Ref. to PROCEDURE , Refrigerant Charging Procedure. >	Is the refrigerant pressure within the specified range?	Refrigerant pressure is normal.	Go to step 3.
3 REPLACE EXPANSION VALVE. Replace the expansion valve. < Ref. to REMOVAL , Expansion Valve. >	Is the refrigerant pressure within the specified range?	Refrigerant pressure is normal.	Inspect the compressor. < Ref. to COOL AIR DOES NOT COME OUT WHEN PRESSING THE A/C SWITCH. FOG CANNOT BE CLEARED. (COMPRESSOR DOES NOT OPERATE.) , DIAGNOSTIC PROCEDURE WITH PHENOMENON, Diagnostics with Phenomenon. >