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Why is My AC Being So Loud?

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Why is My AC Being So Loud?

Posted On: April 3, 2024

Why is My AC Being So Loud?

A loud air conditioning unit can be caused by various factors. Here are some common reasons why your AC might be noisy:


  1. Dirty or Clogged Filters: Accumulated dirt and debris in the filters can obstruct airflow, causing the unit to work harder and produce more noise.


  2. Loose Parts: Over time, components such as screws, bolts, or fan blades can become loose, leading to rattling or vibrating noises.


  3. Worn Out Parts: Wear and tear can cause parts like belts, bearings, or motors to deteriorate, resulting in unusual sounds.


  4. Lack of Maintenance: Regular maintenance, including lubrication of moving parts and cleaning of coils, is essential for optimal performance. Neglecting maintenance can lead to increased noise levels.


  5. Improper Installation: If the AC unit was not installed correctly, it may produce excessive noise due to poor placement or improper connection of components.


  6. Refrigerant Issues: Low refrigerant levels or leaks can cause the AC system to malfunction and produce unusual noises.


  7. Fan Issues: Problems with the fan motor or blades can cause loud humming or buzzing sounds.


  8. Ductwork Issues: Damaged or improperly sized ducts can lead to airflow restrictions and noisy operation.


To address the issue, it's recommended to:


  • Check and replace air filters regularly.
  • Tighten any loose parts.
  • Schedule routine maintenance with a professional HVAC technician.
  • Ensure proper installation and insulation of ductwork.
  • Investigate any unusual sounds promptly to prevent further damage.

If the noise persists or worsens, it's best to contact a qualified HVAC technician to diagnose and resolve the problem. Ignoring loud AC noises can lead to more significant issues and potentially higher repair costs down the line.



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by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

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Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

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