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Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Heater, Ventilator And A/C) >> Refrigerant Pressure with Manifold Gauge Set >> Inspection >> Low-Pressure Side Is Low

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.>
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