If your car's AC takes 15 minutes to get cold, the system may be weak, low on refrigerant, or struggling to remove heat from the cabin. A properly working AC should usually begin cooling within a few minutes, although a very hot interior can take longer. Delayed cooling can be caused by low refrigerant, a small leak, a weak compressor, a dirty condenser, a cooling fan problem, a clogged cabin air filter, or a blend door that is letting warm air mix in. Parking in direct sun can also make the first few minutes feel warmer. If the AC eventually cools but takes too long, a technician should check pressures, vent temperature, airflow, and signs of leaks to identify the cause.

Auto Air Conditioning Service in Ann Arbor, MI