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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Heater, Ventilator And A/C) (Service Information) >> Refrigerant Pressure with Manifold Gauge Set >> Inspection >> Both High And Low Pressure Sides Are Low

Both High And Low Pressure Sides Are Low

  1. CHECK REFRIGERANT LEAKS. 

    Check the refrigerant for leaks. Refer 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.

  2. FILL PROPER AMOUNT OF REFRIGERANT. 

    Drain all refrigerant, and refill proper amount of refrigerant.

    Is refrigerant pressure within the standard value?

    Yes:  Refrigerant pressure is normal.

    No:  Perform corresponding "INSPECTION WITH PRESSURE SYMPTOM".