AC Not Cold and Bad Smell - Nissan Rogue 2020
The air conditioning starts cold but quickly becomes warm, accompanied by a bad smell. This indicates a potential refrigerant leak, a failing compressor, or a clogged evaporator with mold growth.
Diagnosis Details
Possible Causes
Low refrigerant level due to a leak (common at seals or condenser)
Faulty AC compressor (internal leak or clutch failure)
Clogged or moldy evaporator core causing bad smell and reduced cooling
Expansion valve or orifice tube blockage
Related OBD-II Codes
Not satisfied with this diagnosis?
Try Another DiagnosisWhat To Do Next
What You Should Do
Have the AC system inspected for refrigerant leaks using a UV dye and pressure test.
Check compressor operation and clutch engagement.
If smell is present, the evaporator may need cleaning or replacement.
Recharge refrigerant only after fixing leaks.
Related Repairs
Share this diagnosis
Help others with similar symptoms
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.
