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 does not activate. This indicates a potential electrical or mechanical failure in the AC system, possibly involving the compressor, blower motor, or refrigerant leak.
Diagnosis Details
Possible Causes
Blower motor or resistor failure – The blower not turning on suggests an electrical issue with the motor or its control module.
AC compressor clutch or relay failure – The compressor not engaging prevents cooling and may cause odors from stagnant moisture.
Refrigerant leak or low charge – Lack of refrigerant can prevent cooling and cause moldy smells from evaporator coil.
Cabin air filter clogged or moldy – A dirty filter can cause bad odors and reduce airflow, but won't prevent blower from turning on.
Related OBD-II Codes
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What You Should Do
Check the cabin air filter first for odor issues.
Then inspect the blower motor fuse and relay.
If the blower still doesn't run, test the blower motor and resistor.
For no cold air, check refrigerant pressure and compressor clutch operation.
A professional AC diagnosis is recommended.
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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.
