Why Is My Car A/C Blowing Hot Air?

When your car A/C blows hot air, it usually means the system needs more than a quick button check. The cause could be simple, but proper diagnosis matters.

Common causes

  • Low refrigerant from a leak
  • Compressor not engaging
  • Condenser or cooling fan issue
  • Electrical fault or pressure sensor problem
  • Blocked cabin filter or weak blower airflow

If the system is low, there is usually a reason. Topping it up without finding the leak may only work temporarily.

Learn more about car A/C repair in Mississauga or book online.

Related Service

Need check engine light diagnostics in Mississauga? Rankin Automotive can help. Book an appointment or call (905) 274-4692.

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