Low-Pressure Side Is Low

CHECK REFRIGERANT LEAKS.
Check the refrigerant for leaks. Ref. to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>Refrigerant Leak Check>INSPECTION .

NOTE: When high-pressure side is less than 0.69 MPa: Go to step 2.

Are there refrigerant leaks?
- Yes : Repair the refrigerant leaking points.
- No : Go to 2.
FILL PROPER AMOUNT OF REFRIGERANT.
Drain all refrigerant, and refill proper amount of refrigerant.
- Recovery: Ref. to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>Refrigerant Recovery Procedure>PROCEDURE .
- Fill: Ref. to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>Refrigerant Charging Procedure>PROCEDURE .
Is refrigerant pressure within the standard value?
- Yes : Refrigerant pressure is normal.
- No : Go to 3.
REPLACE EXPANSION VALVE.
Replace the expansion valve. Ref. to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>Expansion Valve>REMOVAL .

Is refrigerant pressure within the standard value?
- Yes : Refrigerant pressure is normal.
- No : Inspect the compressor. Ref. to AIR CONDITIONER (DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION>COLD AIR DOES NOT COME OUT EVEN WHEN THE A/C SWITCH IS PRESSED. THE GLASS CANNOT BE DEFOGGED. (COMPRESSOR DOES NOT OPERATE.) .