Why is my Air Conditioner Making Noise?

This shows a picture of a woman checking out her ductless AC system, also known as a mini split system.

Your air conditioning unit will always make some noise when running, and older units are louder than newer ones, so consider the age of your unit before getting too concerned about the noise that it is making.

At Tassio Temperature Control, we recommend a maintenance inspection at least once a year to inspect the health of your air conditioner. If the regular noise level from your ac unit is too much for you, talk to one of our technicians and we can advise what the next step might be.

How Would you Describe the Noise that your Unit is Making?

  • Rattling

    This could be from something that fell into the vents, or something is loose, a bolt, screw or fastener. It could also be your compressor rattling. If it is your compressor or anything more serious than a loose bolt you will need a technician to look into the problem further.

  • Grinding

    Most likely this is one of the fan motors, or it is possible that there is a worn bearing.

  • Popping

    This noise might be coming from your duct work when your AC unit turns off and on. Duct work ages just the same as anything else and requires routine maintenance to make sure it is functioning effectively.

  • Hissing

    Unless this noise is coming from your duct work, this could be a refrigerant leak. If that is the case, you will need one of our technicians to handle the problem.

Trust your ears, if your air conditioner is making a noise that is unusual or harsh and you are in the San Fernando Valley, call us today at 818-322-0037 or schedule service online.