AC System Noise Inside Cabin
A noise inside the cabin when the AC is on typically indicates an issue with the blower motor, fan, or debris in the HVAC system. The 2020 Subaru Outback may also experience a failing blend door actuator or refrigerant expansion valve noise.
Diagnosis Details
Possible Causes
Debris (leaves, dirt) lodged in the blower motor or cabin air filter housing
Worn or failing blower motor bearings
Faulty blend door actuator or mode door actuator
Refrigerant expansion valve noise (hissing or gurgling)
Related OBD-II Codes
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What You Should Do
Inspect and replace the cabin air filter if dirty.
Remove debris from the blower motor area.
If noise persists, have a technician test the blower motor and actuators.
For refrigerant noises, check AC system pressures.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
