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Lennox Air conditioner is loud or noisy

Common solutions for: Lennox Air conditioner is loud or noisy

01 - Compressor
When the compressor is wearing out, it generates more noise than usual. When this happens, it is not necessary to replace the compressor—compressors often last for years after they become noisy. However, if you would prefer to have a new compressor, have a licensed professional replace it.
Required Part
Air Conditioner Compressor
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Most Common Solution
02 - Dual Shaft Fan Motor
The fan motor or dual shaft fan motor has bearings which are usually permanently lubricated. However, over several years, the lubrication will break down, causing the motor to become noisy. If this happens, replace the dual shaft fan motor.
Required Part
Air Conditioner Dual Shaft Fan Motor
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03 - Fan Blade
Air conditioners have a fan blade in the front and a fan blade in the rear. Check both fan blades for damage. If a fan blade is damaged, or is rubbing against the fan housing, replace it.
Required Part
Air Conditioner Fan Blade
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04 - Fan Motor
The fan blades might be scraping against the blower housing. Air conditioners have a fan blade in the front and a fan blade in the rear. Check both fan blades to ensure that they are not rubbing against the housing. If the blades aren’t rubbing against the housing and the fan motor is still noisy, check the fan motor bearings for wear. If the bearings are worn, replace the fan motor.
Required Part
Air Conditioner Fan Motor
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05 - Blower Wheel
Wiggle the blower wheel to see if it wobbles on the motor shaft. If the blower wheel is loose, try tightening or replacing the screw. If blower wheel still isn’t stable, replace the blower wheel altogether.
Required Part
Air Conditioner Blower Wheel
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06 - Blower Motor
One or more of the fan blades might be scraping against the housing. Air conditioners have a fan blade in the front and a fan blade in the rear. Check both fan blades to ensure that they are not rubbing against the housing. If the blades aren’t rubbing against the housing and the fan motor is still noisy, check the blower motor bearings for wear. If the bearings are worn, replace the blower motor.
Required Part
Air Conditioner Blower Motor
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Common Solution

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