Frigidaire Dishwasher Error Code UO – How to Fix it

Is your Frigidaire dishwasher displaying UO error code and unable to operate?

This Error Code implies that there is an issue with your dishwasher’s fan, valve, or sensor. You may also notice water drainage from your dishwasher when this error code is displayed.

How to Fix UO Error Code on Frigidaire Dishwashers

If your Frigidaire dishwasher displays error code UO, simply reset your dishwasher. To do that, turn it Off and unplug it from the power. Turn it on again after 5-10 minutes. If this does not fix the problem, inspect your dishwasher fan, valve and sensor.

If your dishwasher is under warranty, the easiest solution would be to contact Frigidaire customer support for a replacement. Unfortunately, in most cases, opening your dishwasher will void its warranty.

Restart your Dishwasher

First of all, you need to restart your Frigidaire dishwasher.

Also, make sure to run the diagnostics test on your dishwasher. If this does not work, try the next method.

Inspect the Fan, Valve, and Sensor

Turn Off your dishwasher and disconnect it from the power source, and then take a look at your dishwasher fan. Check its connections and ensure that they are cleaned properly because damaged wires can prevent the transmission of the signals.

The valve and sensor are located at the back of the dishwasher, covered by a solenoid. Once you remove the rubber element, you will see the valve. Clean its contact carefully using a dry cloth.

After cleaning and inspecting the valve and sensors, carefully put them back into their places and turn on your dishwasher.

If the issue still persists, your dishwasher’s fan probably needs replacement. I’d recommend calling a expert appliance technician to do this job for you.


Hopefully, after following the above methods, you should be able to fix error code UO on your Frigidaire dishwasher.

If you still have issues with your Frigidaire dishwasher, contact Frigidaire support or call them at +1-800-374-4432. They are available Monday to Friday from 8:30am to 8pm (EST).

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