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It’s never a good sign when you turn your air conditioner on and notice that it’s accompanied by the sound of a loud rattling or hissing noise. 

If you’re wondering when you should worry about your vocal air conditioner, the answer is now. Summer is just around the corner, and trust us, you do not want to deal with a faulty AC unit on a hot day.

Are these strange noises cause for concern? Continue reading to find out:

 

Examples of Unusual Sounds

If you hear any of these noises coming from your air conditioner, we can assure you that it’s not normal. Keep your ears open for the following sounds:

 

  • Banging. A clunking sound is a definite sign that something is broken or loose. Your system may have an electrical issue with the compressor or blower fan. Given how costly these issues are to fix, this isn’t a noise that you want to hear.


  • Buzzing. Your air conditioner is making the same noise as a herd of angry bees. This issue requires the same sense of urgency since it might point to a refrigerant leak or a loose component. Failing to repair this issue will cause further damage to the unit.

 

  • Whistling. If your air conditioner is whistling a tune, ask yourself when the last time you changed the filter was. Was it longer than a couple of months ago? If so, that whistling noise could be due to restricted airflow. Replace the filter and clean the return vents to clear up the issue.

 

  • Hissing. This noise indicates a problem with pressure. The refrigerant may be too highly pressurized to the point where your AC sounds like a squeaky clarinet. Depending on where the pressure is built up, this issue could be dangerous, so be sure to shut off the power immediately.


  • Clicking. In most cases, this sound is perfectly normal, like when you turn the air conditioner off and on. However, if your unit clicks consistently while it’s in use, it might have a defective thermostat, an obstruction in the fan blades, or another electrical issue. 

 

  • Humming. Your AC shouldn’t sound like the wings of a small bird. Humming might mean that something is vibrating, like a loose bolt or component. Alternatively, it might be due to a compressor or fan motor that’s seized. You will need help from a professional to accurately diagnose the issue.

 

Don’t Delay—Call an HVAC Technician Today!

Modern ACs are quiet, efficient, and operate without you noticing. But if this sounds like the opposite of your unit, then you may need a repair or replacement.

At the end of the day, unusual noises indicate that it might be time for a new air conditioner. It’s not an expense that any homeowner wants to bear, but it’s better than the alternative: enduring a summer in Texas without cool indoor air. For AC repair and replacements, give Classic Air Conditioning & Heating a call!

See What Our Customers Are Saying

Karrie Mikle
Karrie Mikle
2022-05-06
Verified
Everyone I have dealt with at Classic over the last several years always go the extra mile with customer service. Reliable, pleasant and knowledgeable team - especially JOEY SCALA!
Sarah Rogers
Sarah Rogers
2022-05-03
Verified
Eddie, Isaac and saul did amazing work, talked to me about everything, and made sure they installed my new ac properly. Thank yall so much!
CHERYL SCHILLINGS
CHERYL SCHILLINGS
2022-04-18
Verified
William Bragg
William Bragg
2022-04-08
Verified
We've been using Classic Air Conditioning & Heating Services for the past five years to include Installation of new units (flawless by the way), bi-annual check-ups that are scheduled and carried out without a second thought on my part, and in emergencies (backed up drain in the bathroom with a response time in under 24 hours to troubleshoot the problem). Their technicians are master's at their craft, personable, and cut to the chase on his service calls. I never feel like I'm being given the run around or a sales pitch with this company. Today, Mitchell Wesch went above and beyond walking us through what was happening and provided a multitude of options and expected timelines for future repairs. Once again, a great example of exemplary customer service. He was able to troubleshoot the problem with zero delay. We're ready for the Texas summer, and are already looking forward to the next scheduled service call. Thank you Classic Services for keeping our home healthy and happy.
Sondra Von Gyllenband
Sondra Von Gyllenband
2022-04-08
Verified
These folks are kind and helpful. They will above and beyond to assist. They make sure what needs to be done is done. Sondra
Lexie Gillotti
Lexie Gillotti
2022-04-06
Verified
Theresa did an amazing job! She informed me about everything she was doing and took extra pictures so I could have them for my record. She was quick but still answered all my questions. She definitely saved the day when my condensor froze over on the coldest day of the year, leaving my family in the cold. She was out at my house within the hour and had everything fixed in minutes.
MARIE ORTEGA
MARIE ORTEGA
2022-03-29
Verified
Very professional presentation and very very quick arrival day Same Day to our needs much better than anyone in San Antonio, very disappointed with services from San Antonio. Importantly corrected our problem in same day. Took their time and gave advice and great great pricing. Won’t go anywhere else. Will always consider local businesses instead.
Jeffrey Fields
Jeffrey Fields
2022-03-26
Verified
Jan Smith
Jan Smith
2022-03-10
Verified
Stephanie Corona
Stephanie Corona
2022-02-23
Verified
Well, once again, Classic comes to the rescue. I am on their yearly maintenance plan and yesterday Nate showed up for a late afternoon service call. Nate was professional, friendly and knowledgeable. This company never ceases to impress me. From the person that answers the phone to the people that come out to help. ALWAYS on time, responsive and caring. GREAT JOB NATE!!!

Classic Services AC & Heating

1893 State Highway 46 South, New Braunfels, TX 78130, United States

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