Unlock the Right Part
for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.
Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeChoose Product
Identify Problem
03
Find Solutions
HomeRepair HelpComfortmaker Central A/C RepairComfortmaker Central air conditioner is noisy or loud Repair
Comfortmaker Central air conditioner is noisy or loud
If your Comfortmaker central AC is making loud noise, start with the outdoor condensing unit, where the condenser fan and electrical controls are located. The most likely cause is debris hitting the fan blade, so shut off power at the disconnect box and circuit breaker before inspecting and cleaning the unit. Next, check the condenser fan motor for worn bearings. If the motor does not rotate smoothly by hand, it may be causing the AC fan motor noise and should be replaced. Loose grille or cabinet panels can also vibrate and create air conditioner loud noise, so tighten the panel fasteners. If the noisy condenser fan continues, inspect the condenser fan blade for looseness, damage, or a loose set screw. A worn condenser fan motor is another possibility. If the unit is making buzzing noise and is not cooling, a defective contactor may be failing to send power to the condensing unit. Testing or replacing a contactor involves hazardous 240V line voltage and is best handled by a qualified technician. Enter your Comfortmaker model number to find the exact fan motor, fan blade, panel, or contactor replacement part 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 - Comfortmaker 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.
Enter model number to search for the required part specific to your product
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 - Comfortmaker 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 - Comfortmaker 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 - Comfortmaker 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 Comfortmaker central AC making a loud noise?
How can I tell if the Comfortmaker condenser fan motor is making the noise?
Why is my Comfortmaker AC making a buzzing noise and not cooling?
Could a bad capacitor or compressor be causing my Comfortmaker air conditioner loud noise?
How do I find the correct Comfortmaker condenser fan motor or fan blade replacement part?
Shop by Comfortmaker Central Air Conditioner Parts
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com