The Whirlpool Duet Dryer is a popular household appliance known for its efficiency and advanced features. To troubleshoot and diagnose potential issues with your dryer, you can access the diagnostic mode. This mode provides valuable information about the dryer’s components and can help identify problems. In this guide, we will walk you through the steps to run the Whirlpool Duet Dryer diagnostic mode.
Step 1: Preparation
Before entering the diagnostic mode, ensure your dryer is properly connected to the power source and that it’s in good working condition. Make sure there are no loose connections or damaged components.
Step 2: Accessing Diagnostic Mode
To access the diagnostic mode on a Whirlpool Duet Dryer, follow these steps:
2.1. Power Off the Dryer: Start by turning off the dryer and unplugging it from the power source for at least 30 seconds. This brief power interruption helps reset the control board.
2.2. Access the Control Panel: Open the dryer’s door and locate the control panel. It’s typically found above the dryer’s door frame.
2.3. Enter Diagnostic Mode:
To enter the diagnostic mode, press and hold down the following three buttons in sequence, for about 6 seconds each:
- More Time
- Less Time
- More Time
After holding each button for approximately 6 seconds, release them in the same order.
Step 3: Diagnostic Tests
Once you’ve successfully entered the diagnostic mode, the dryer’s display will show a series of codes. These codes correspond to various diagnostic tests. You can navigate through these tests by turning the cycle selector knob. Here are some common tests you can perform:
3.1. Display Check: To check if the display is functioning correctly, rotate the cycle selector knob to the “0” position. The display should show all segments illuminated.
3.2. Moisture Sensor Test: Rotate the cycle selector knob to the “4” position. This test checks the moisture sensor and should display a “4” on the screen.
3.3. Thermal Fuse Test: Rotate the knob to the “6” position to test the thermal fuse. The display should show a “6” if the fuse is working correctly.
3.4. Door Switch Test: For the door switch test, rotate the knob to the “8” position. If the door switch is functioning properly, the display will show an “8.”
3.5. Drum Light Test: To test the drum light, turn the knob to the “9” position. The display will show a “9” if the drum light is working.
Step 4: Interpret the Results
As you navigate through the diagnostic tests, pay attention to the codes displayed. If a test shows a code other than what is expected or if you encounter any issues during the tests, note down the code and refer to the dryer’s service manual or Whirlpool’s customer support for further assistance.
Step 5: Exiting Diagnostic Mode
Once you’ve completed the necessary diagnostic tests or obtained the information you need, exit the diagnostic mode by simply opening the dryer door or turning the power off and back on. This will return the dryer to its regular operating mode.
Step 6: Advanced Diagnostic Tests (Optional)
While the basic diagnostic tests mentioned earlier can cover most common issues, Whirlpool Duet Dryers also offer advanced diagnostic tests for a more thorough assessment. These tests can help pinpoint specific problems with components such as the motor, heating element, and thermistor. Here’s how to access and run these advanced tests:
6.1. Motor Test: Rotate the cycle selector knob to the “2” position. This test checks the motor and should display “2” if it’s functioning correctly.
6.2. Heater Test: To test the heating element, turn the knob to the “3” position. The display should show “3” if the heater is operating as expected.
6.3. Thermistor Test: Rotate the knob to the “5” position to test the thermistor. If the thermistor is working correctly, the display will show a “5.”
6.4. Exhaust Thermistor Test: For this test, set the knob to the “7” position. If the exhaust thermistor is functioning properly, the display will show a “7.”
Running these advanced tests can provide more specific information about the dryer’s components, making it easier to diagnose and address any issues.
Step 7: Document and Seek Assistance
As you run the diagnostic tests, take notes of any codes or unusual behavior you observe. If you encounter any codes that indicate a problem, consult your dryer’s user manual or the manufacturer’s service manual. These resources often include code explanations and troubleshooting steps for each specific issue.
If you’re unsure about the results or need further assistance, don’t hesitate to contact Whirlpool’s customer support or a qualified appliance repair technician. They can provide expert guidance and help you determine the best course of action to resolve any problems.
Entering Diagnostic Mode
| Step | Action | Displayed on Screen | Explanation |
|---|---|---|---|
| 1 | Ensure the dryer is off | – | Make sure the dryer is in standby mode. |
| 2 | Press and hold the “Control Lock” button | “LOC” or “DOOR LOCKED” | Hold for 3 seconds until “LOC” or “DOOR LOCKED” disappears. |
| 3 | Rotate the cycle selector knob to the right (clockwise) | – | Turn the knob slowly with one click at a time. |
| 4 | Rotate the knob counterclockwise one click | – | Wait for a moment before moving on. |
| 5 | Continue alternating between clockwise and counterclockwise turns | – | Repeat several times until all the light segments illuminate. |
Diagnostic Tests
| Test Number | Action | Displayed on Screen | Purpose |
|---|---|---|---|
| 1 | Press and hold the “Start” button | – | Activates the moisture sensor test. |
| 2 | Wait for “88” to appear | “88” | Indicates the moisture sensor test is running. |
| 3 | Observe the estimated time remaining | Varies | Displays moisture sensor readings. |
| 4 | Press “Cycle Signal” to advance to the next test | Varies | Proceeds to the next diagnostic test. |
| … | Repeat steps 1-4 for each test | – | Cycle through all available tests. |
Exiting Diagnostic Mode
| Step | Action | Displayed on Screen | Explanation |
|---|---|---|---|
| 1 | Turn the cycle selector knob to “OFF” | – | Ensure the knob is in the “OFF” position. |
| 2 | Press and hold the “Control Lock” button | – | Hold for a few seconds to exit diagnostic mode. |
| 3 | Release the “Control Lock” button | – | Diagnostic mode is now deactivated. |
| 4 | Unplug the dryer or turn off the power for a few seconds | – | Reset the dryer’s control system. |
| 5 | Plug the dryer back in or turn the power on | – | Restore power to the dryer. |
Diagnostic Mode Indicator Lights
| Light Indicator | Description |
|---|---|
| Sensing | The dryer is in diagnostic mode. |
| Estimated Time Remaining | Displays the remaining time for each test. |
| Check Vent | Indicates the need to check the dryer’s vent system. |
| Moisture Level | Displays moisture sensor readings during tests. |
| Diagnostic Code | Shows error codes if any issues are detected. |
Diagnostic Mode Test Descriptions
| Test Number | Test Name | Purpose and Description |
|---|---|---|
| 1 | Moisture Sensor Test | Checks the moisture sensor’s functionality. |
| 2 | Outlet Thermistor Test | Measures the temperature at the dryer’s exhaust. |
| 3 | Inlet Thermistor Test | Measures the temperature of the incoming air. |
| 4 | L2 Line Voltage Test | Verifies the voltage supplied to the dryer. |
| 5 | Heater Test | Activates the dryer’s heating element. |
| 6 | Motor Test | Checks the operation of the dryer’s motor. |
| 7 | Console Buttons Test | Tests the functionality of the control panel buttons. |
| 8 | Moisture Sensor Bar Test | Verifies the status of the moisture sensor bars. |
| 9 | Static Load Test | Evaluates the dryer’s ability to sense load size. |
| 10 | Software Version Display | Displays the dryer’s software version. |
Conclusion:
Using the Whirlpool Duet Dryer’s diagnostic mode, including both basic and advanced tests, can be a valuable tool for troubleshooting and maintaining your dryer. Regularly running these tests can help you catch potential issues early, ensuring your dryer continues to operate efficiently and effectively. Remember to document your findings and seek professional assistance when needed to keep your appliance in optimal working condition.
