Frigidaire Dishwasher Diagnostic Mode: Troubleshoot Like a Pro

A dishwasher is a modern marvel that saves us time and effort in the kitchen. Frigidaire dishwashers, known for their reliability and performance, are equipped with advanced diagnostic features that can help you identify and resolve issues quickly. In this article, we will explore the Frigidaire dishwasher diagnostic mode and how to troubleshoot common problems efficiently.

Understanding the Frigidaire Dishwasher Diagnostic Mode

The Frigidaire dishwasher diagnostic mode is an invaluable tool that allows you to access information about the dishwasher’s internal components and running processes. By activating this mode, you can diagnose potential malfunctions and understand error codes displayed by the machine.

Accessing the Diagnostic Mode

To enter the Frigidaire dishwasher diagnostic mode, follow these simple steps:

Step 1 – Preparation

Ensure the dishwasher is empty and turned off. Close the door properly.

Step 2 – Initiation

Press and hold the High-Temperature Wash and Start/Cancel buttons simultaneously.

Step 3 – Activation

Keep holding the buttons for about 3 seconds until the indicator lights illuminate. Then release the buttons.

Step 4 – Diagnostic Mode

The dishwasher will now be in diagnostic mode, ready to display error codes and run tests.

Interpreting Error Codes

In diagnostic mode, your Frigidaire dishwasher may display error codes like ER, S, or numbers. Here’s what they mean:

ER Codes

ER codes signify error messages related to electronic components. Refer to your dishwasher’s manual for a comprehensive list of ER codes and their corresponding explanations.

S Codes

S codes represent the state of various sensors and switches within the dishwasher. These codes help identify faulty or malfunctioning sensors.

Number Codes

Number codes indicate specific issues in different parts of the dishwasher. Each number corresponds to a particular problem, allowing for targeted troubleshooting.

Running Diagnostic Tests

Apart from displaying error codes, the Frigidaire dishwasher diagnostic mode enables you to conduct various tests to identify problems. Some of the common tests include:

Water Valve Test

Check if the water valve is functioning correctly by running a water valve test.

Drain Pump Test

Test the drain pump to ensure it can effectively remove water from the dishwasher.

Heater Test

Check if the dishwasher’s heater is working correctly, ensuring efficient drying of dishes.

Troubleshooting Common Issues

The Frigidaire dishwasher diagnostic mode helps in troubleshooting a range of common issues:

Issue 1 – Dishwasher Not Starting

If the dishwasher doesn’t start, check for error codes and inspect the door latch and control panel.

Issue 2 – Poor Cleaning Performance

Run diagnostic tests to check water temperature, water pressure, and spray arms’ functionality.

Issue 3 – Leakage

Inspect hoses, door gaskets, and pumps to identify the source of leakage.

How do I exit the Frigidaire dishwasher diagnostic mode?

To exit the diagnostic mode, simply press the Start/Cancel button. This will reset the dishwasher to its regular operation mode.

Is the Frigidaire dishwasher diagnostic mode compatible with all models?

Yes, most Frigidaire dishwasher models have a diagnostic mode. However, the exact method to access it may vary slightly between different models.

Will using the diagnostic mode void my dishwasher’s warranty?

No, using the diagnostic mode as instructed in the user manual will not void your dishwasher’s warranty.

How often should I run diagnostic tests on my Frigidaire dishwasher?

It is advisable to run diagnostic tests when you encounter an issue or at least once every six months to ensure your dishwasher’s optimal performance.


The Frigidaire dishwasher diagnostic mode is an indispensable feature for any dishwasher owner. By understanding error codes and conducting diagnostic tests, you can efficiently troubleshoot issues and keep your dishwasher running smoothly. Next time your Frigidaire dishwasher acts up, don’t panic – just activate the diagnostic mode and let it guide you towards a solution.

Click to rate this post!
[Total: 0 Average: 0]
Spread the love