AC Not Cold, Bad Smell, and Won't Turn On
The air conditioning system is not producing cold air, emits a foul odor, and the blower or compressor fails to engage. This suggests a possible electrical fault, refrigerant leak, or mold growth in the evaporator.
Diagnosis Details
Possible Causes
Blown fuse or faulty relay for the AC compressor or blower motor
Refrigerant leak causing low pressure and system shutdown
Mold or bacterial growth in the evaporator core causing bad smell
Faulty AC compressor clutch or compressor failure
Failed blower motor resistor or blower motor itself
Related OBD-II Codes
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What You Should Do
Check the AC system fuses and relays first.
If they are good, inspect for refrigerant leaks using a UV dye or pressure test.
For the smell, clean the evaporator with a specialized AC coil cleaner.
If the system still won't turn on, have a professional diagnose the compressor clutch and blower motor circuit.
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.
