Small beeps when AC is on
My car has 110000 miles.
My car has an automatic transmission.
Hello. Small beeps when the AC is on can be caused by dirty or faulty AC components. A common source of a beeping or chirping sound when the AC is turned on is a dirty or faulty evaporator case. The evaporator case has moving components that can produce noise when they become excessively dirty. In some cases, the unit can be cleaned. However, sometimes it will require replacement. As noises can sometimes be difficult to diagnose, I would have a professional technician carefully inspect the noise in person to determine where exactly it may be coming from.
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