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LB Chase Heating & Air
Justin Wood, General Manager
Email Justin: GM@LBchase.com
Rated 4.9 on 
(393 Reviews)
Lead Funnel - AC Making Noise Appointment
LB Chase is Rated 4.9 on and Received an Industry Leading NPS® Score in Customer Satisfaction
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About Our AC Making Loud or Strange Noises Service Appointments
Justin Wood, General Manager
Email me: GM@LBchase.com
If your AC is making a loud or unusual noise, it is usually a sign that something inside the system is loose, worn, or not operating correctly. Different sounds can point to different issues. Banging or clanking may indicate loose or broken parts. Buzzing can signal electrical problems. Screeching or squealing may come from a worn belt or motor issue. Rattling could be debris or loose components.
While some noises may start small, they often get worse over time and can lead to more expensive repairs if ignored.
If your system suddenly becomes louder than normal or starts making a new or unusual sound, it is best to have it inspected before the issue causes further damage.
After you complete the short form above, an LB Chase comfort advisor will contact you within 1–2 hours during normal business hours to schedule your appointment. During your visit, our technician will inspect the blower motor, fan assembly, electrical components, compressor, and overall system operation to identify the source of the noise.
We will explain what we find in clear, straightforward terms, review your repair options, and help you decide the best next step. If the issue is minor, we will take care of it. If the system is aging or showing signs of larger mechanical problems, we will walk you through your options with no pressure.
LB Chase Heating & Air has been serving Sevierville, Maryville, Seymour, Kodak, Pigeon Forge, and surrounding East Tennessee communities since 1995. Our goal is to restore quiet, reliable comfort to your home with honest diagnostics and dependable service.
Frequently asked questions about why your AC is making loud or strange noises
Why is my AC making a loud noise?
A loud AC noise usually means something inside the system is loose, damaged, or failing. Common causes include loose parts, failing motors, worn bearings, or debris inside the unit. Sudden loud noises should be inspected to prevent further damage.
What does a banging or clanking sound from my AC mean?
Banging or clanking often means a loose or broken part inside the compressor or fan assembly. It can also indicate an unbalanced or damaged blower. This type of noise should be checked quickly to avoid additional damage.
Why is my AC making a buzzing sound?
Buzzing can be caused by electrical issues such as a failing capacitor, loose wiring, or a malfunctioning contactor. It may also be caused by debris in the outdoor unit or issues with the fan motor.
Why is my AC making a screeching or squealing noise?
Screeching or squealing is often related to a worn belt, motor bearings, or a failing blower motor. These sounds typically indicate parts that are wearing out and may need repair or replacement.
Why is my AC making a rattling noise?
Rattling is often caused by loose screws, panels, or debris inside the unit. It can also indicate aging components beginning to wear out. While sometimes minor, it should still be inspected if it continues.
Is it safe to run my AC if it is making noise?
It depends on the noise, but in many cases it is best to limit use until the issue is inspected. Unusual noises can indicate mechanical or electrical problems that may worsen if the system continues running.
Why is my AC getting louder over time?
If your AC is gradually getting louder, it may be due to normal wear and tear on components like the fan motor, compressor, or blower assembly. Dirt buildup and lack of maintenance can also contribute to increased noise levels.
When should I call an HVAC technician for a noisy AC?
You should call a technician if the noise is new, getting worse, or sounds like banging, screeching, or buzzing. These sounds often indicate underlying issues that should be diagnosed before they lead to system failure.