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Friedrich Air conditioner fan not working

If your Friedrich air conditioner fan is not working, the problem is usually in the fan drive or the controls feeding power to it. Start with the dual shaft fan motor, also called the circulation fan motor, since worn or seized bearings can stop both fan blades from turning. If the shaft feels loose or will not turn, replace the motor. A standard fan motor can fail the same way, so spin the blade by hand and check for incoming voltage if it turns freely. If the Friedrich AC fan is not working but the motor and capacitor test good, the relay board may not be sending voltage to the fan. Next, check the temperature control thermostat or thermostat for continuity, especially if both the compressor and fan motor are not running. A main control board can also cause an air conditioner fan motor not running condition, but it should be checked last because boards are often misdiagnosed. Enter your Friedrich model number on RepairClinic.com to find the exact replacement part for your specific air conditioner.

01 - Friedrich Air Conditioner Dual Shaft Fan Motor

The dual shaft fan motor (or circulation fan motor) might be defective. The circulation fan motor has two fan blades: one on either side of the motor. On one side, the fan blade draws in outside air over the condensing coil to dissipate the heat. On the other side, the fan blade directs the air over the evaporator coil. The dual shaft fan motor has bearings that can loosen or bind over time. To determine if the motor bearings are defective, wiggle the motor shaft. If the motor shaft is loose, or if it won’t turn at all, replace the fan motor.
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02 - Friedrich Air Conditioner Fan Motor

Try turning the blade by hand. If the blade does not turn freely, this indicates that the motor bearings are worn out. If the motor bearings are worn out, replace the motor. If the blade turns freely, test the incoming power to the fan motor. If power is getting to the fan motor, but the motor won’t run, this also indicates that the motor is defective and should be replaced.
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03 - Friedrich Air Conditioner Relay Board

The relay board provides voltage to many components of the air conditioner, including the fan motor. If the relay board isn’t working properly, the fan might not run. Relay boards are often misdiagnosed; before replacing the board, make sure you check more commonly defective parts—particularly the fan motor capacitor and the fan motor itself. If you are certain that all of the other components are working properly, replace the relay board.
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04 - Friedrich Air Conditioner Temperature Control Thermostat

The temperature control thermostat has electrical contacts that burn out over time. If the electrical contacts are burned out, the thermostat won’t work properly The fan motor should always be running when the compressor is on. If the compressor is running, but the fan motor is not running, the fan motor or the fan motor capacitor are likely at fault. If both the compressor and the fan motor won’t run, use a multimeter to test the temperature control thermostat for continuity. If the thermostat does not have continuity, replace it. (Note: Some thermostats may also control a heater and, as a result, will have three terminal...s. Refer to your air conditioner’s wiring diagram for more information.)
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05 - Friedrich Air Conditioner Thermostat

The thermostat monitors the temperature of the air. When the air temperature rises above a set point, the thermostat activates a switch to provide power to the fan and compressor. If the thermostat is defective, it may prevent the fan from working. To determine if the thermostat is defective, set the air conditioner to cooling and then use a multimeter to test the thermostat for continuity. If the thermostat does not have continuity while the air conditioner is set to cooling, replace the thermostat. (Note: Some thermostats may also control a heater and, as a result, will have three terminals. Refer to your air conditioner...’s wiring diagram for more information.)
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06 - Friedrich Air Conditioner Main Control Board

The main control board provides voltage to all of the air conditioner’s components. If there is a problem with the control board, it might stop providing power to the fan motor. Control boards are often misdiagnosed; make sure you check more commonly defective parts before replacing the main control board. If you are certain that all of the other components are working properly, replace the main control board.
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Frequently Asked Questions

Why is my Friedrich air conditioner fan not working?
Why is my Friedrich AC compressor running but the fan is not spinning?
Can a bad thermostat cause a Friedrich window air conditioner fan not to run?
Should I replace the relay board if my Friedrich air conditioner fan motor is not running?
How do I find the right Friedrich air conditioner fan motor or thermostat replacement part?

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