Many years ago, air-conditioning units were noisy. Fortunately, technology has greatly improved. The units we’ve got nowadays are more efficient and produce less noise. High-efficiency air-conditioning units utilize variable speed compressors and sound dampening technology. This helps ensure they do not produce loud sounds.  

You should not ignore your AC unit if you start hearing odd noises from it. It can be an indication that there’s something wrong with your unit.  

Fortunately for you, we’re here to help. Today, we are going to discuss some of the most common noises that people hear from their AC unit. If you’re one of these people, don’t hesitate to hire an ac repair Tempe AZ company for help. 


Clanging noises are an indication that there’s something out of balance inside the unit. It can also mean that there is a loose component. The compressor could be loose or the components inside the unit may have failed. Clanging noises can also show issues with the outdoor fan or blower motor. The loose fan can start hitting other components and cause more damage in the long run. 


A chattering or rattling sound from your air-conditioning unit means the entire unit is slowly deteriorating. The internal components of the unit may be loose. Also, any debris that your AC accumulates inside it can clog the unit and produce a rattling noise. Other damaged parts, such as the compressor or electrical contacts, can be producing the sound. The fan often becomes loose and starts to rattle within the housing. This produces a rattling noise.  


A metallic grinding sound coming from your air-conditioning unit means that there is probably an issue with the compressor. This can occur as it deteriorates as time passes by. Keep in mind that the compressor is the heart of your AC unit. Its purpose is to circulate the refrigerant inside the unit. The pistons inside the compressor are perhaps experiencing deterioration and are causing loud grinding sounds. If this is the case, you will have to replace the compressor. This isn’t a DIY job. You need to hire a professional HVAC technician for help.  


It can be a severe issue if your AC unit is producing squealing or shrieking sounds. These noises can come through the ductwork and be heard around your home. There’s a huge possibility that the indoor blower motors or fan motors aren’t properly working. Malfunctioning blower wheels can begin to produce squealing noises and can result in more issues if you choose to ignore them.  

You should hire a professional HVAC technician to fix the issue if you hear odd noises from your AC. It does not matter if your AC unit keeps on cooling your house properly. It should not produce weird sounds. Allowing your unit to operate with all these problems can result in more serious damage down the line. Rather than letting things get worse, you should be proactive. Doing so will help you save a lot of money since you can prevent extensive and expensive repairs.