AC Not Cold with Musty Smell
The air conditioning system is not producing cold air and emits a musty odor when turned on. This typically indicates a refrigerant issue combined with microbial growth in the evaporator or cabin air filter.
Diagnosis Details
Possible Causes
Clogged or dirty cabin air filter restricting airflow and harboring mold/mildew
Evaporator core covered in mold or mildew due to moisture buildup
Low refrigerant level (leak) causing reduced cooling and allowing moisture to accumulate
Related OBD-II Codes
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What You Should Do
Replace the cabin air filter first.
If smell persists, have the evaporator coil cleaned and the AC system inspected for refrigerant leaks.
A professional AC service may be needed.
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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.
