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HomeRepair HelpTrane Central A/C RepairTrane Central A/C Condenser fan motor does not run Repair
Trane Central Air Conditioner Condenser fan motor does not run
When your Trane central air conditioner's outdoor condenser fan motor is not running or spinning, the most likely cause is a failed run capacitor. A bulging or leaking capacitor can make the condenser fan motor noisy, cause it to overheat, or keep it from starting. Next, check the motor control board, which can prevent the motor from running or maintaining the correct speed. If the board and capacitor are sound, the fan motor may have failed. This condenser fan motor troubleshooting involves the outdoor condensing unit and its 240-volt circuit. Turn off power at the disconnect box and circuit breaker before inspecting parts, and do not test live voltage or replace a capacitor unless you understand the electrical risks; line-voltage diagnosis should be handled by a qualified HVAC technician. No refrigerant work is needed for these checks, but any repair inside the sealed system requires an EPA 608-certified technician. Enter your Trane model number to find the exact replacement run capacitor, motor control board, or condenser fan motor for your specific air conditioner.
01 - Trane 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 - Trane 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 - Trane 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 - Trane 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 - Trane 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 - Trane 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 Trane condenser fan not running?
How do I troubleshoot a Trane AC fan motor that is not running?
Can a bad capacitor cause a noisy condenser fan or an AC fan motor to stop?
What other Trane parts can cause the condenser fan motor not to run?
How do I identify the correct Trane condenser fan motor or capacitor?
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