Refrigerant Pressure with Manifold Gauge Set: Inspection
WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
| Symptoms |
Probable cause |
Repair order |
| High-pressure side is unusually high. |
- Defective condenser fan motor
- Clogged condenser fin
- Too much refrigerant
- Air inside the system
- Defective receiver dryer (condenser)
|
- Replace the fan motor.
- Clean the condenser fin.
- Discharge refrigerant.
- Replace the condenser.
- After evacuating again, charge an appropriate amount of refrigerant.
|
| High-pressure side is unusually low. |
- Defective compressor
- Not enough refrigerant
- Clogged expansion valve
- Expansion valve frozen temporarily by moisture.
|
- Replace the compressor.
- Check for leaks.
- Replace the expansion valve.
- Fully evacuate the expansion valve.
|
| Low-pressure side is unusually high. |
- Defective compressor
- Defective expansion valve
- Too much refrigerant
|
- Replace the compressor.
- Replace the expansion valve.
- Discharge refrigerant.
|
| Low-pressure side is unusually low. |
- Not enough refrigerant
- Clogged expansion valve
- Expansion valve frozen temporarily by moisture.
- Saturated receiver dryer (condenser)
|
- Check for leaks.
- Replace the expansion valve.
- Replace the condenser.
|