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HomeRepair HelpGrandAire Central A/C RepairGrandAire Central A/C Condenser fan motor does not run Repair
GrandAire Central Air Conditioner Condenser fan motor does not run
If your GrandAire central air conditioner's condenser fan motor does not run, the outdoor fan may be the reason the system is not cooling properly. The most likely cause is a failed run capacitor, which can make the condenser fan noisy, cause it to overheat, or keep it from spinning. Next, check the motor control board, the condenser fan motor, and the capacitor. A bulging or leaking capacitor should be replaced, but a capacitor can hold a dangerous electrical charge even when the power is off. This condenser fan troubleshooting also requires checking whether the motor receives power. Testing for 240V line voltage, replacing electrical controls, or working inside the disconnect box is beyond normal DIY scope and should be handled by a qualified HVAC technician. Do not open the sealed refrigerant system or handle refrigerant unless you have EPA 608 certification. Enter your GrandAire central air conditioner model number to find the exact replacement run capacitor, motor control board, fan motor, condenser motor, or condenser fan motor for your unit.
01 - GrandAire 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 - GrandAire 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 - GrandAire 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 - GrandAire 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 - GrandAire 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 - GrandAire 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 GrandAire condenser fan not running?
How do I test a GrandAire AC fan capacitor?
How can I tell if the GrandAire condenser fan motor is bad?
Could a control board, relay, fuse, or contactor keep the outdoor AC fan from running?
How do I find the correct GrandAire condenser fan motor or capacitor?
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