Subaru Crosstrek Service Manual: Inspection
HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > Refrigerant Pressure with Manifold Gauge Set
INSPECTION
1. INSPECTION WITH PRESSURE SYMPTOMS
Symptoms | Reference |
Both high and low pressure sides are low. | Refrigerant Pressure with Manifold Gauge Set > INSPECTION"> |
Both high and low pressure sides are high. | Refrigerant Pressure with Manifold Gauge Set > INSPECTION"> |
Both high and low pressure sides are equal, or high-pressure side is low. | Refrigerant Pressure with Manifold Gauge Set > INSPECTION"> |
High-pressure side is high. | Refrigerant Pressure with Manifold Gauge Set > INSPECTION"> |
Low-pressure side is low. | Refrigerant Pressure with Manifold Gauge Set > INSPECTION"> |
Low-pressure side is high. | Refrigerant Pressure with Manifold Gauge Set > INSPECTION"> |
2. BOTH HIGH AND LOW PRESSURE SIDES ARE LOW
| STEP | CHECK | YES | NO |
1.CHECK REFRIGERANT LEAKAGE.
Check the refrigerant for leakage. Refrigerant Leak Check > INSPECTION">
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.
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 2.
2.FILL PROPER AMOUNT OF REFRIGERANT.
Drain the refrigerant completely, and then refill the proper amount of refrigerant.
• Recovery: Refrigerant Recovery Procedure > PROCEDURE">
• Refill: Refrigerant Charging Procedure > PROCEDURE">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Perform appropriate inspection with pressure symptoms.
3. BOTH HIGH AND LOW PRESSURE SIDES ARE HIGH
| STEP | CHECK | YES | NO |
1.FILL PROPER AMOUNT OF REFRIGERANT.
Drain the refrigerant completely, and then refill the proper amount of refrigerant.
• Recovery: Refrigerant Recovery Procedure > PROCEDURE">
• Refill: Refrigerant Charging Procedure > PROCEDURE">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Perform appropriate inspection with pressure symptoms.
4. BOTH HIGH AND LOW PRESSURE SIDES ARE EQUAL, OR HIGH-PRESSURE SIDE IS LOW
| STEP | CHECK | YES | NO |
1.CHECK REFRIGERANT LEAKAGE.
Check the refrigerant for leakage. Refrigerant Leak Check > INSPECTION">
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.
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 2.
2.FILL PROPER AMOUNT OF REFRIGERANT.
Drain the refrigerant completely, and then refill the proper amount of refrigerant.
• Recovery: Refrigerant Recovery Procedure > PROCEDURE">
• Refill: Refrigerant Charging Procedure > PROCEDURE">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Inspect the compressor. Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">
5. HIGH-PRESSURE SIDE IS HIGH
| STEP | CHECK | YES | NO |
1.CHECK CONDENSER.
Check the condenser. Condenser > INSPECTION">
Is condenser normal?
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 2.
Clean or replace the condenser.
2.CHECK RADIATOR FAN.
Check the radiator fan system. Radiator Fan System">
Is radiator fan system normal?
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 3.
Repair or replace the faulty parts of the radiator fan system.
3.FILL PROPER AMOUNT OF REFRIGERANT.
Drain the refrigerant completely, and then refill the proper amount of refrigerant.
• Recovery: Refrigerant Recovery Procedure > PROCEDURE">
• Refill: Refrigerant Charging Procedure > PROCEDURE">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Check the high-pressure hose and condenser for deformation or clogging, and replace if defective.
6. LOW-PRESSURE SIDE IS LOW
| STEP | CHECK | YES | NO |
1.CHECK REFRIGERANT LEAKAGE.
Check the refrigerant for leakage. Refrigerant Leak Check > INSPECTION">
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.
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 2.
2.FILL PROPER AMOUNT OF REFRIGERANT.
Drain the refrigerant completely, and then refill the proper amount of refrigerant.
• Recovery: Refrigerant Recovery Procedure > PROCEDURE">
• Refill: Refrigerant Charging Procedure > PROCEDURE">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 3.
3.REPLACE EXPANSION VALVE.
Replace the expansion valve. Expansion Valve > REMOVAL">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Inspect the compressor. Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">
7. LOW-PRESSURE SIDE IS HIGH
| STEP | CHECK | YES | NO |
1.FILL PROPER AMOUNT OF REFRIGERANT.
Drain the refrigerant completely, and then refill the proper amount of refrigerant.
• Recovery: Refrigerant Recovery Procedure > PROCEDURE">
• Refill: Refrigerant Charging Procedure > PROCEDURE">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Refrigerant Pressure with Manifold Gauge Set > INSPECTION">Go to Step 2.
2.REPLACE EXPANSION VALVE.
Replace the expansion valve. Expansion Valve > REMOVAL">
Is the refrigerant pressure within the specified range?
Refrigerant pressure is normal.
Replace the evaporator. Evaporator > REMOVAL">
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