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Samsung Air Conditioner won't run

If your Samsung air conditioner won’t run, start with the controls and power path before assuming the unit is finished. On many Samsung AC models, a failed control board or main control board can stop voltage from reaching the compressor and fan motor, leaving the AC unable to start. The user control and display board is another likely cause, especially if the unit has power but does not respond when you select fan speed or cooling settings. A faulty selector switch can also keep the fan motor from turning on, and signs like intermittent operation, arcing, or smoke point strongly in that direction. If the Samsung air conditioner has no power at all, check the outlet, plug, breaker, or fuse before replacing parts. Whether you are dealing with a Samsung AC won’t turn on issue or a window air conditioner not turning on, RepairClinic.com can help you narrow it down. Enter your model number to find the exact replacement control board, main control board, user control and display board, selector switch, or other part for your specific Samsung air conditioner.

01 - Samsung 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 - Samsung 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 - Samsung 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 - Samsung 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 Samsung air conditioner turn on?

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

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

Should I replace the control board if my Samsung air conditioner won't run?

How do I find the right replacement part for a Samsung air conditioner that won't run?

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