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HomeRepair HelpCarrier Central A/C RepairCarrier Central A/C Condenser fan motor does not run Repair
Carrier Central Air Conditioner Condenser fan motor does not run
When your Carrier central air conditioner has an outdoor condenser fan motor that is not running or spinning, the most likely cause is a failed run capacitor. A bulging or leaking capacitor can make the fan motor noisy, cause it to overheat, or keep it from starting. Next, check the motor control board, which controls motor speed and can prevent the motor from running. If the board is working, the condenser fan motor may have failed, especially if it receives the correct voltage but will not run. A separate capacitor or the condenser fan motor itself may also be defective. This condenser fan troubleshooting involves electrical testing, so turn off power at the disconnect box and circuit breaker before inspecting parts. Capacitors can retain a dangerous charge, and testing or replacing components in the outdoor unit may involve 240V line voltage. Hire a qualified HVAC technician if you are not trained to work safely around energized equipment. Refrigerant work is not needed for these checks, but any sealed-system repair requires an EPA 608-certified technician. Enter your Carrier model number to find the exact replacement run capacitor, motor control board, or condenser fan motor for your air conditioner.
01 - Carrier 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 - Carrier 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 - Carrier 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 - Carrier 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 - Carrier 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 - Carrier 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 Carrier condenser fan not running?
How do I test a Carrier AC fan motor and capacitor?
Can I run my air conditioner if the outdoor condenser fan is not spinning?
Why is my condenser fan making noise before it stops running?
How do I find the correct Carrier condenser fan motor or capacitor?
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