5 AC Noises You Shouldn’t Ignore

Air conditioners are essential appliances that provide comfort during hot summer months. They help maintain a calm and pleasant environment inside our homes or workplaces. However, sometimes air conditioners can make unusual noises that indicate underlying issues. Ignoring these noises can lead to more significant problems and potentially costly repairs. This blog will examine some everyday air conditioner noises you shouldn’t ignore and what they might indicate. We will also provide information about air conditioning services in Tulare, CA.

The 8 Most Common AC Noises and What They May Mean | Blair's Air

Air conditioners operate by circulating refrigerant and using various mechanical components to cool the air. While it’s normal for them to produce some noise during operation, certain sounds can indicate problems that require attention.

  • Rattling and Banging Noises

Rattling or banging sounds often suggest loose or broken components within the air conditioner. This could be due to a fan blade that is out of balance, a loose motor mount, or a failing compressor. Ignoring these noises may lead to further damage to the unit.

  • Clicking Sounds

Clicking sounds are common during the startup and shutdown of an air conditioner. However, persistent or excessive clicking noises might indicate an issue with the electrical controls or a faulty relay switch. It’s important to address these issues promptly to prevent potential electrical failures.

  • Screeching or Squealing Noises

Screeching or squealing noises usually indicate a problem with the fan motor or the blower wheel. It could be due to worn-out bearings or a worn-out belt. Ignoring these noises may result in further damage and reduced cooling efficiency.

  • Humming or Buzzing Sounds

A constant humming or buzzing sound might indicate loose components, such as loose screws or fan blades. It can also indicate a failing motor or a faulty electrical connection. It’s crucial to have these issues resolved to avoid potential breakdowns.

  • Hissing or Whistling Sounds

Hissing or whistling sounds often suggest refrigerant leaks. The hissing noise occurs when the refrigerant escapes from the system. Whistling sounds might indicate issues with the ductwork. It’s important to address these issues promptly to ensure optimal cooling performance.

Warning Signs Your AC Is Dying


Air conditioner noises should never be ignored, as they often indicate underlying problems that require attention. Regular maintenance and timely repairs can help prevent significant issues and extend the lifespan of your air conditioning system. If you notice any unusual sounds, it’s advisable to contact professional HVAC services in Tulare. to diagnose and resolve the problem promptly.

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