Skip the auto shop - Our mechanics make house calls

Q: When AC is on I hear a beeping noise

asked by on

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Turn reverse beep to one beep.

The beeping sound in the reverse mode can be very annoying. Click here to view the steps to disable the beeping alarm. If you need further assistance with your back-up alarm, then seek out a professional, such as one from...

Q: Brake Fluid Leak On Front Driver Side

This may suggest you have a leak coming from your brake master cylinder or the lines running to it. As you may know, when there is a significant loss of brake fluid, you may notice a spongy brake pedal or...

Q: AC Blower not Working

The most common failure for this problem is the blower control module (also known as the linear power module). The module should be replaced with a new one, after which you may notice the blower speeds higher than they were...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.