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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. When AC is on I hear a beeping noise

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: Chime in car is annoyingly Too Loud - 2016 Chevrolet Volt CVT

The Chime Volume setting has two values, Normal and High. Check your settings to make sure it is in the Normal position. If that is still too loud for you, you might try putting some duct tape over the "door...

Q: Passenger window won't go up

The first thing I would try is an auto window position relearn. This should allow the control module to regain the correct window position information, allowing the windows to work as designed. To do this, turn the ignition on...

Q: My car only accelerates directly after I start it. After a short period, it stops responding to the gas pedal being pressed.

You will need to have the computer scanned and the fuel pressure tested to see if the pressure is low. Since there is a problem then the system tests will identify the cause of the loss of power. You either...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...