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HomeRepair HelpNutone Central A/C RepairNutone Central A/C Condenser fan motor does not run Repair
Nutone Central Air Conditioner Condenser fan motor does not run
If your NuTone central air conditioner has a condenser fan not running, the outdoor condenser fan may not spin even though the system calls for cooling. The most likely cause is a failed run capacitor, which can make the fan motor noisy, cause it to overheat, or keep it from starting. Next, a defective motor control board can prevent the motor from running or operating at the correct speed. If the capacitor looks normal, the fan motor itself may have failed. Other possible causes include a faulty condenser motor, capacitor, or condenser fan motor. A multimeter test can confirm whether the motor is receiving the proper voltage, but the outdoor condensing unit contains hazardous 240-volt wiring. Turn off power at the disconnect box and circuit breaker, and have a qualified HVAC technician handle live-voltage testing or wiring repairs. Refrigerant work and any repair inside the sealed system require an EPA 608-certified technician. You can safely inspect for a bulging or leaking capacitor, then enter your NuTone model number to find the exact replacement run capacitor, motor control board, fan motor, or condenser fan motor for your specific central air conditioner.
01 - Nutone Central Air Conditioner Run Capacitor
If the run capacitor is defective, the fan motor might be noisy, overheat, or not run at all. To determine if the run capacitor has failed, inspect the capacitor. If the run capacitor is bulging or leaking, replace it.
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Common
02 - Nutone Central Air Conditioner Motor Control Board
The motor control board helps to maintain the desired motor speed of the blower. When the motor control board fails, the blower motor may not run at the correct speed or it may not run at all.
Common
03 - Nutone Central Air Conditioner Fan Motor
To determine if the fan motor is working, use a multimeter to test the incoming voltage to the motor. If the fan motor is receiving the correct voltage but the motor still won’t run, inspect the capacitor to ensure that it is not at fault. If the capacitor is not bulging or leaking, replace the fan motor.
Common
04 - Nutone Central Air Conditioner Motor
To determine if the condenser motor is working, use a multimeter to test the incoming voltage to the motor. If the condenser fan motor is receiving the correct voltage but the motor still won’t run, inspect the capacitor to ensure that it is not at fault. If the capacitor is not bulging or leaking, replace the condenser fan motor.
Common
05 - Nutone Central Air Conditioner Capacitor
If the capacitor is defective, the fan motor might be noisy, overheat, or not run at all. To determine if the capacitor has failed, inspect the capacitor. If the capacitor is bulging or leaking, replace it.
Common
06 - Nutone Central Air Conditioner Condenser Fan Motor
To determine if the condenser motor is working, use a multimeter to test the incoming voltage to the motor. If the condenser fan motor is receiving the correct voltage but the motor still won’t run, inspect the capacitor to ensure that it is not at fault. If the capacitor is not bulging or leaking, replace the condenser fan motor.
Less Common
Frequently Asked Questions
Why is my NuTone condenser fan not spinning?
How do I troubleshoot a NuTone condenser fan motor that is hot but not running?
How can I test a NuTone condenser fan motor with a multimeter?
Can a bad capacitor cause my NuTone air conditioner fan to make noise?
How do I find the correct NuTone condenser fan motor or capacitor?
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