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.
Clears the grease and limescale clogging your filter, spray arms and drain line. Try this before pulling any parts out.
Pros:
- Reaches what you cannot scrub by hand.
- One tablet a month stops buildup.
- Safe for every dishwasher brand.
Cons:
- Heavy limescale may need two runs.
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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.
Conclusion
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).
Kills the stale smell when dishes come out clean but the machine does not. Clears residue from the sump and filter.
Pros:
- Targets odor at the source.
- Cuts limescale in hard water.
- Runs on an empty cycle.
Cons:
- Rinse the filter first for best results.
As an Amazon Associate I earn from qualifying purchases.
| True Fresh Dishwasher Cleaner & Deodorizer Tablets, 24-Pack | Check Price |
| SplaShh Dishwasher Cleaner and Deodorizer Tablets | Check Price |
| Finish Ultimate Quantum Dishwasher Pods | Check Price |
Frigidaire Dishwasher Still Not Working?
Start with the problem you are seeing. Use our dishwasher diagnostic tool, answer a few easy questions, and get the solution.
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Written by
Muhammad Ali is an Electrical Engineer and Appliance Repair Specialist from Canada, who has been helping people fix their appliances since 2020.