GE Dishwasher Diagnostic Mode: Troubleshooting Made Easy

When your GE dishwasher is acting up and not functioning as it should, it’s essential to identify the problem quickly. Fortunately, GE dishwashers come equipped with a built-in diagnostic mode that can help you troubleshoot and pinpoint the issue. In this article, we’ll guide you through the GE dishwasher diagnostic mode, step by step, to make the process simple and efficient. Whether you’re dealing with poor cleaning performance, unusual noises, or error codes, this diagnostic mode will be your valuable tool in resolving the problem.

Understanding the GE Dishwasher Diagnostic Mode

The GE dishwasher diagnostic mode is designed to provide a comprehensive overview of the appliance’s internal systems and detect any errors or malfunctions. By accessing this mode, you gain access to vital information that will aid you in identifying the root cause of the problem. To enter the diagnostic mode, follow these steps:

  1. Step 1: Preparation
    • Before starting the diagnostic process, ensure the dishwasher is empty and turned off. Close the dishwasher door properly.
  2. Step 2: Activate Diagnostic Mode
    • Press the Start/Reset button on the dishwasher’s control panel and hold it for five seconds. Then, release the button and wait for a few seconds.
  3. Step 3: Enter Diagnostic Code
    • After a brief pause, press the Start/Reset button once more and hold it for another five seconds. Release the button and wait for the diagnostic code to appear on the display.

Interpreting the Diagnostic Code

When the GE dishwasher is in diagnostic mode, it will display a two-digit code on the control panel. This code corresponds to a specific component or function in the dishwasher. Refer to the user manual or the GE official website for a comprehensive list of diagnostic codes and their meanings. Here are some common diagnostic codes and their interpretations:

  • Code 01: Door Switch
  • Code 02: Heating Element
  • Code 03: Wash Pump
  • Code 04: Drain Pump
  • Code 05: NTC Thermistor
  • Code 06: Turbidity Sensor
  • Code 07: Diverter Motor

Using Diagnostic Mode for Troubleshooting

Once you’ve identified the diagnostic code, you can proceed with the troubleshooting process. Here’s how to use the diagnostic mode for some common issues:

1. Poor Cleaning Performance

If you’re experiencing issues with the dishwasher’s cleaning performance, consider the following steps:

  • Check Spray Arms: Ensure the spray arms are clean and not clogged. Use a needle or toothpick to remove any debris.
  • Inspect Filters: Clean or replace the filters if they are dirty or damaged, as they play a crucial role in the dishwasher’s cleaning process.
  • Verify Water Temperature: Make sure the water temperature is appropriate for effective cleaning. It should be between 120-150°F (49-66°C).

2. Unusual Noises

Unfamiliar noises coming from the dishwasher can be concerning. Here’s what you can do:

  • Check for Obstructions: Look for any objects or utensils that might be obstructing the spray arms or other dishwasher components.
  • Inspect the Pump: A noisy dishwasher could indicate a faulty pump. Refer to the diagnostic code to determine if the pump is the issue.

3. Error Codes

Error codes can be challenging to understand without the diagnostic mode. When you encounter an error code, follow these steps:

  • Refer to the Manual: Consult the dishwasher’s user manual to identify the meaning of the specific error code.
  • Check for Solutions: The manual may provide solutions to resolve the error. Follow the recommended steps to fix the problem.

How do I exit the GE dishwasher diagnostic mode?

To exit the diagnostic mode, simply turn off the dishwasher by pressing the power button. The dishwasher will exit the diagnostic mode automatically.

Can I run the diagnostic mode if my dishwasher is already running?

No, the diagnostic mode can only be activated when the dishwasher is not running.

Will the diagnostic mode fix the problem itself?

No, the diagnostic mode is for identifying issues. Once you’ve identified the problem using the diagnostic code, you can then take appropriate action to fix it.

My dishwasher is still under warranty. Should I attempt to troubleshoot it myself?

If your dishwasher is under warranty, it’s best to contact the manufacturer or authorized service center for repairs. Attempting to troubleshoot it yourself may void the warranty.

Can I use the diagnostic mode for any GE dishwasher model?

Yes, the diagnostic mode is a standard feature in most GE dishwasher models, but it’s always a good idea to check the user manual to confirm its availability in your specific model.


The GE dishwasher diagnostic mode is an invaluable feature that simplifies troubleshooting and saves you time and money on unnecessary repairs. By following the steps outlined in this article, you can effectively use the diagnostic mode to identify issues and resolve them efficiently. Remember always to consult the user manual for a comprehensive list of diagnostic codes and their meanings.

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