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Friedrich Air Conditioner won't run

If your Friedrich air conditioner won’t run, start with the controls and power path before assuming the whole unit is bad. The most likely cause is a failed control board, which regulates voltage to the compressor and fan motor and can keep one or both from operating. A faulty main control board can cause the same AC won’t turn on symptom, especially if the unit has power but will not respond correctly. The user control and display board is another common failure point, since it handles fan speed and cooling selections and may prevent the air conditioner from starting. If the fan only runs intermittently when you press buttons, or you see arcing or smoke, the selector switch may be bad. Also confirm the basics: the Friedrich unit is plugged in, the outlet has power, and no breaker or fuse has tripped if the air conditioner has no power. Enter your model number on RepairClinic.com to find the exact control board, selector switch, power cord, or other replacement part for your specific Friedrich air conditioner.

01 - Friedrich Air Conditioner Control Board

The control board regulates the voltage to the compressor and the fan motor. If the control board fails, some components will not function properly or will not work at all. Control boards are often misdiagnosed; make sure to check more commonly defective parts first before replacing the control board.

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Highly Likely

02 - Friedrich Air Conditioner Main Control Board

The main control board regulates the voltage to the compressor and the fan motor. If the control board fails, some components will not function properly or will not work at all. Control boards are often misdiagnosed; make sure to check more commonly defective parts first before replacing the main control board.

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Highly Likely

03 - Friedrich Air Conditioner User Control and Display Board

The user control and display board allows the user to operate the unit by selecting fan speeds and cooling temperatures. If the board is defective, the air conditioner may be unable to run. If you've confirmed power it reaching the unit, it's possible the user control and display board is malfunctioning and will need to be replaced.

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Highly Likely

04 - Friedrich Air Conditioner Selector Switch

The selector switch directs voltage to the fan motor. If the switch is faulty, the fan motor may not turn on and the air conditioner won't run. To determine if the selector switch is at fault, try making selections on the air conditioner’s control board. If the fan runs intermittently after you press a button, replace the selector switch. Additionally, if there is any arcing or smoke coming from the selector switch, replace it.

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Common

05 - Incoming Power Problem

Check to see if there is power to the air conditioner. One or more indicator lights on the control board should be illuminated. If there is no power to the air conditioner, check to see if a circuit breaker has tripped or a fuse has blown. Confirm the unit is plugged in and has power.

Common

Frequently Asked Questions

Why won't my Friedrich air conditioner turn on?

What should I check first if my Friedrich window air conditioner has no power?

Can a bad selector switch keep a Friedrich AC from running?

Should I replace the Friedrich air conditioner control board if the AC won't run?

How do I find the right replacement part for my Friedrich air conditioner?

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