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Danby Air Conditioner won't run

If your Danby air conditioner won’t run, the problem is usually in the controls that send voltage to the fan motor and compressor. The most likely cause is a failed control board, followed closely by the main control board, either of which can keep major components from starting even when the unit has power. A faulty user control and display board can also make the AC won’t turn on because the unit is not receiving or processing your selections for fan speed or cooling. Next, check the selector switch, especially if the fan starts intermittently when you press buttons or you notice arcing, smoke, or inconsistent operation. If the Danby air conditioner has no power at all, confirm the unit is plugged in, the outlet works, and the circuit breaker or fuse has not tripped. Whether you are dealing with a window air conditioner not turning on or a portable Danby AC that stays completely dead, enter your model number on RepairClinic.com to find the exact replacement control board, selector switch, or other part made for your specific air conditioner.

01 - Danby 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 - Danby 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 - Danby 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 - Danby 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 Danby air conditioner run at all?

What should I check if my Danby AC won't turn on but the outlet works?

Can a bad selector switch keep a Danby window air conditioner from turning on?

Should I replace the control board if my Danby air conditioner has no power?

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

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