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Frigidaire Dishwasher Error Codes

Technically Reviewed by Oleg Chudnovski on Nov 06, 2025 | Written by Spark Service PRO Editorial Contributors

Nowadays, manufacturers equip most dishwashers with specialized systems that, in the event of a malfunction, allow the device to self-diagnose the issue. The results will reflect on the display in new models of dishwashers or, in the older models, specific LED signals on the control panel. Let's figure out what those error codes mean and what to do if your Frigidaire dishwasher not starting.

How To Identify a Frigidaire Dishwasher Problem By Its Code

There are such Frigidaire gallery dishwasher error codes:

• HO (HD) – Frigidaire dishwasher HO code stands for Heat Delay and indicates low water temperature. The Frigidaire dishwasher HD code means the same thing.
• CO (CD) – Frigidaire dishwasher error code CO stands for Connection Error and usually means that you need to close the appliance’s door properly.
• UO – Frigidaire gallery dishwasher UO code indicates vent-related issues that require professional assistance.
• LO - Low Rinse Aid.
• ER CE – Frigidaire ER CE code means serious communication error between the display board and the main relay control board.
• PF – Frigidaire dishwasher PF code stands for Power Failure.
• i10 - Low water level.
• i30 – Frigidaire dishwasher code i30 signals about pump malfunction.
• i20, i40, iF0 - Restricted drain line.

If you see your Frigidaire dishwasher beeping and showing error codes you don’t recognize, contact a certified repair specialist.

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How to Reset an Error Code on a Frigidaire Dishwasher

Here is how to reset a Frigidaire dishwasher with a few simple troubleshooting steps:

1. Turn off the dishwasher and unplug it from the power source for a few minutes.
2. Plug it back in and turn it on to see if the error code is cleared.
3. In case of this method of Frigidaire dishwasher reset not working, refer to your owner's manual for specific instructions on how to reset the error code for your Frigidaire Gallery dishwasher model.

Another option is to perform a hard Frigidaire dishwasher reset by turning off the circuit breaker that powers the dishwasher, and then turning it back on after a few minutes. Sometimes this can return the Frigidaire dishwasher flashing error codes back to regular operation.

Causes of Dishwasher Malfunctions

If the dishwasher stops working correctly after seven years, it is most likely because its parts have worn out, and you need to replace them. However, if you have just purchased a new dishwasher and it refuses to work correctly, you need to determine the cause. There can be several reasons why you see a Frigidaire dishwasher blinking an error code:

• The dishwasher's assembly quality is poor. To avoid this, purchase devices from reputable manufacturers.
• The dishwasher filter is constantly clogged. This problem can be solved by rinsing the dishes before putting them in the dishwasher.
• There is a problem with the outlet or the power cord. You will need to use a tester to find the root of this problem.
• The dishwasher has not been connected correctly to the home communication system.
• Poor-quality cleaning detergents.
• Incorrect loading of dishes into the dishwasher. It is necessary to read the instruction manual carefully, which describes how to use the device.
• The dishwasher door is not closed correctly, so the washing program does not start.

Refer to this list whenever you need to troubleshoot Frigidaire dishwashers.

The Dishwasher Does Not Start the Washing Process

To enter the Frigidaire dishwasher diagnostic mode, you need to press the first and the second buttons simultaneously and hold them down for at least 5 seconds. You can do that if, after turning on the device, you see that the indicator lights up on the control panel, but the washing process does not start.

How to Prevent Errors and Malfunctions

Here is what you can do to ensure your dishwasher operates correctly:

• Regularly clean the filter located at the bottom of the device. You have to remove it to clean.
• Dirty nozzles prevent the dishwasher sprayers from properly nebulizing water, so they need to be cleaned at least once a week. These nozzles are also responsible for water pressure. If they become clogged, the dishes will not be washed properly. You can use a toothpick to unclog these parts.
• Proper operation of the dishwasher's circulation pump is critically important, as this pump supplies water to the sprinklers. You cannot use a toothpick here because the filter can be damaged. Most likely, you will have to replace the faulty part with a new one. If you don't know how to do it, call a specialist.
• Another problem causing the dishwasher to not start is a burnt motor winding. A tester can help you check whether the engine is working or not.

Sometimes, more water than usual accumulates in the dishwasher before the washing cycle has even started. This situation indicates that the dishwasher's water level sensor is no longer working. This sensor is located at the bottom of the dishwasher, and it cannot be repaired. You need to replace it altogether. If you are not sure whether you can handle this task, contact the service center.

How To Prolong the Dishwasher’s Service Life

To ensure that your device keeps performing its functions for a long time, you have to clean it regularly from fat and food residues. In this part, we will tell you how to clean a dishwasher and what is suitable for it.

Dishwasher care consists of the following stages:

1. Cleaning the mesh filter: Remove the element from the device and wash it with water and detergent. This will allow you to easily clean the drain filter from grease.
2. Washing dirt off the blades: the impeller is constantly clogged with food residues. To clean the blades, remove them one by one from the dishwasher and rinse them under running water.
3. Cleaning the filling: For this, you need to use an old toothbrush or buy specialized tools. First, clean the seals from dirt, and then wipe them with a dry cloth.
4. Washing the basket and the inner base of the appliance: You can clean the basket with baking soda, vinegar, or detergent. The final stage is to wipe the basket with a dry towel and install it in its original place.
5. Removal of rust and mould, as well as unpleasant odours - ordinary detergents and vinegar are suitable for solving this problem.
6. Descaling: Cleaning products can help remove hard deposits. They can effectively remove limescale and prevent its buildup.

As a final step, spray the cleaning liquid over the entire surface and give the surface a shine.

Final Conclusion

Regular cleaning of the dishwasher is the key to a long service life. The developers recommend carrying out complex works once every two months. Regarding filtration, it needs to be cleaned every two weeks. If you follow simple rules, you can be sure that the device will perform its functions for a long time, and you won’t see any error codes.