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HomeRepair HelpAmana Central A/C RepairAmana Central air conditioner is noisy or loud Repair
Amana Central air conditioner is noisy or loud
Is your Amana central air conditioner making a loud noise? Start with the outdoor condensing unit and shut off power at the disconnect box and circuit breaker before inspecting it. Debris striking the condenser fan blade is the most likely cause of an air conditioner making noise, so clear leaves, sticks, and other objects from the unit. Next, check the condenser fan motor. Worn bearings can cause AC fan motor noise, and the motor should rotate smoothly by hand with power disconnected. Loose grille or cabinet panels can also vibrate and create an ac unit rattling noise, so tighten them. If the noisy condenser fan continues, inspect the condenser fan blade for looseness, a damaged hub, or a loose set screw, then check the fan motor shaft for play. A defective contactor is less common but may produce buzzing noise, and can prevent the unit from cooling. Because the outdoor unit contains dangerous 240V line voltage, have a qualified technician test or replace electrical parts such as the contactor. Enter your Amana model number to find the exact replacement fan motor, condenser fan blade, or contactor for your central air conditioner.
01 - Debris Hitting Fan
Over time debris can fall into the condensing unit, causing a noise when the fan is running. Inspect the fan blade and inside the unit for any debris. Clean out the outdoor unit as needed but be sure to shut off power to the unit before attempting to clean it out.
Top Solution
02 - Amana Central Air Conditioner Fan Motor
The fan motor has bearings that can wear out over time. When the bearings are worn out, they make loud noise. To check the bearings, try rotating the fan motor by hand. If the motor does not turn smoothly, replace it.
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Highly Likely
03 - Panels Vibrating
If the outdoor condensing unit is noisy, the grille or one of the panels may be loose and vibrating. Check for loose panels and tighten them as needed.
Highly Likely
04 - Amana Central Air Conditioner Fan Blade
The fan blade on the condenser fan motor might be defective or loose. To check the fan blade, wiggle the fan motor shaft. If the motor shaft is loose, tighten or replace the set screw. If the condenser fan motor is still making noise, replace the fan blade.
Less Common
05 - Amana Central Air Conditioner Condenser Fan Motor
The condenser fan motor has bearings that can wear out over time. When the bearings are worn out, they make loud noise. To check the bearings, try rotating the condenser fan motor by hand. If the motor does not turn smoothly, replace it.
Less Common
06 - Amana Central Air Conditioner Contactor
The furnace control board sends a low voltage signal to the contactor. When the contactor receives the signal from the control board, it closes the circuit, sending voltage to the condensing unit components. If the contactor is defective, it will not provide voltage to the condensing unit. In addition, the contactor will make noise when it is defective. If the condensing unit is making noise but not cooling, the contactor has probably failed. To determine if the contactor is at fault, use a multimeter to test the contactor for continuity. If the contactor does not have continuity, replace it.
Less Common
Frequently Asked Questions
Why is my Amana central air conditioner making a loud noise?
How do I troubleshoot a noisy condenser fan or AC fan motor?
Why is my Amana buzzing or rattling noise but not cooling?
How do I find the correct Amana condenser fan motor or fan blade replacement part?
When should I call an HVAC technician for a noisy central AC?
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