Whirlpool Dishwasher Diagnostic Mode

Whirlpool dishwashers are known for their reliability and efficiency in cleaning dishes. Sometimes, however, they may encounter issues or require maintenance. The Whirlpool dishwasher diagnostic mode is a valuable tool that can help you identify problems and perform basic troubleshooting. In this guide, we will explore how to access and use the diagnostic mode on a Whirlpool dishwasher.

Accessing Diagnostic Mode:


Here are some common functions and tests you can perform in the Whirlpool dishwasher diagnostic mode:

  1. Error Code Display: The dishwasher will display error codes that correspond to specific issues. Refer to your dishwasher’s user manual or a Whirlpool technician guide to interpret these codes.
  2. Component Testing: You can test various components of the dishwasher, such as the heating element, pump motor, and sensors, to ensure they are functioning correctly. Follow the on-screen instructions to activate each test.
  3. Cycle Through Functions: Use the control buttons to cycle through different dishwasher functions, including water inlet valve, drain pump, and detergent dispenser. This helps identify problems with specific parts of the dishwasher.
  4. Resetting the Control Board: In some cases, resetting the control board can resolve minor issues. In diagnostic mode, you may have the option to reset the control board to its default settings.
  5. Clearing Error Codes: After diagnosing and fixing an issue, you can use the diagnostic mode to clear error codes from the dishwasher’s memory.


While the diagnostic mode is a useful tool for troubleshooting, it’s essential to exercise caution:

  • Always disconnect the dishwasher from the power source before entering diagnostic mode or attempting any repairs.
  • If you are unsure about any of the diagnostic mode functions or encounter an error code you don’t understand, consult the user manual or contact Whirlpool customer support.

Additional Tips and Troubleshooting in Diagnostic Mode:

  1. Water Inlet Valve Test: If you suspect that your dishwasher is not filling with water properly, you can use diagnostic mode to test the water inlet valve. This test will activate the valve, allowing you to check if water is flowing adequately into the dishwasher.
  2. Drain Pump Test: To address drainage issues, you can initiate a drain pump test. This will help you determine if the drain pump is functioning correctly and expelling water as it should. If not, you may need to inspect the pump and associated hoses for blockages.
  3. Temperature Sensor Test: If your dishwasher isn’t heating water as it should, you can check the temperature sensor in diagnostic mode. It will verify if the sensor is accurately detecting water temperature, which is crucial for effective cleaning.
  4. Detergent Dispenser Test: Ensure that the detergent dispenser is dispensing soap at the appropriate time during the wash cycle. Problems with the dispenser can result in poorly cleaned dishes.
  5. Motor and Spray Arm Tests: In some Whirlpool dishwasher models, you can initiate tests to check the motor and spray arm functionality. This can help identify issues related to water circulation and dishwashing performance.
  6. Error Code Documentation: Keep a record of the error codes displayed during diagnostic mode. These codes can be valuable when seeking assistance from Whirlpool customer support or a technician. Error codes often provide specific information about the problem, making it easier to pinpoint the issue.
  7. Factory Reset: If you’ve made multiple adjustments or customizations to your dishwasher’s settings and suspect these might be causing problems, you can use diagnostic mode to perform a factory reset. This will return all settings to their default values.

When to Seek Professional Help:

While the diagnostic mode is a powerful tool for troubleshooting, there are instances where you should consider contacting a professional technician:

  • Electrical Issues: If you suspect electrical problems, such as a faulty control board or wiring, it’s best to leave these repairs to a qualified technician to avoid electrical hazards.
  • Gas Appliances: If your dishwasher uses natural gas for heating, any issues related to gas supply or components should be handled by a certified technician for safety reasons.
  • Complex Repairs: Major component replacements, like motors or control boards, are best left to professionals with the necessary expertise and tools.
  • Persistent Problems: If you’ve used diagnostic mode to identify an issue but can’t resolve it, or if the problem persists after attempted repairs, it’s time to call in a technician to diagnose and fix the problem accurately.


ModePurposeSteps to ActivateDiagnostic CodesDescription
NormalStandard operationN/AN/AThe default mode for regular dishwashing.
Rinse OnlyQuick rinse cyclePress ‘Rinse Only’N/AUsed for rinsing dishes without detergent.
Cancel DrainInterrupt and drainPress ‘Cancel Drain’N/AStops the current cycle and drains the water.
Control LockLock the control panelPress ‘Control Lock’N/APrevents accidental button presses.
ServiceTechnician use onlyPress ‘Service’Error CodesUsed by technicians for diagnostics.

Whirlpool Dishwasher Error Codes

Error CodeDescriptionRecommended ActionComponent AffectedSeverity
F1Water heating issueCheck water temperatureHeating ElementModerate
F2Water inlet valve failureInspect water inlet valveWater Inlet ValveSevere
E3Not filling with waterCheck water supply and inlet valveWater Inlet ValveCritical
E4Water drainage problemVerify drain hose and pumpDrain SystemModerate
F5Overfilling or float switch issueExamine float switch and water levelFloat SwitchModerate
F6Water not drainingInspect drain pump and hoseDrain Pump, Drain HoseSevere
E7Water temperature sensor malfunctionTest temperature sensorTemperature SensorModerate
F8Turbidity sensor issueCheck turbidity sensorTurbidity SensorModerate
F9Detergent dispenser problemExamine detergent dispenserDetergent DispenserModerate
E10Heating element failureTest heating elementHeating ElementSevere


ModePurposeActivation StepsData LoggingAdvanced Functions
Test Wash CycleEvaluate wash performancePress ‘Test Wash Cycle’YesRuns a complete cycle for assessment.
Sensor CalibrationCalibrate sensors for accuracyPress ‘Sensor Calibration’YesOptimizes sensor readings.
Leak DetectionCheck for water leaksPress ‘Leak Detection’YesMonitors for any water accumulation.
Diagnostic ReportGenerate a detailed diagnostic reportPress ‘Diagnostic Report’YesProvides a comprehensive report.
Pump Function TestTest the pump for functionalityPress ‘Pump Function Test’NoEvaluates the pump’s operation.

Component Testing

ModeComponent TestedActivation StepsTest ResultsPurpose
Heating ElementHeating elementPress ‘Heating Element Test’Pass/FailChecks if the heating element is working.
Drain PumpDrain pumpPress ‘Drain Pump Test’Pass/FailEvaluates the drain pump’s functionality.
Inlet ValveWater inlet valvePress ‘Inlet Valve Test’Pass/FailTests the water inlet valve.
Spray ArmSpray arm rotationPress ‘Spray Arm Test’Pass/FailEnsures the spray arm rotates correctly.
Turbidity SensorTurbidity sensorPress ‘Turbidity Sensor Test’Pass/FailVerifies the turbidity sensor’s accuracy.


ModeMaintenance TaskActivation StepsFrequencyPurpose
Clean FilterClean dishwasher filterPress ‘Clean Filter’MonthlyRemoves debris from the filter.
DescalingRemove mineral buildupPress ‘Descaling’Bi-AnnuallyPrevents scaling in the dishwasher.
Check Spray ArmsInspect spray arm conditionPress ‘Spray Arm Inspection’QuarterlyEnsures even water distribution.
Clean InteriorWipe down interior surfacesPress ‘Clean Interior’As NeededMaintains cleanliness inside.
Lubricate SealsApply lubrication to door sealsPress ‘Lubricate Seals’AnnuallyExtends the life of door seals.

In conclusion, Whirlpool dishwasher diagnostic mode is a valuable resource for both homeowners and technicians to troubleshoot and identify issues with the appliance. By using this mode wisely, you can save time and money by addressing minor problems yourself. However, always prioritize safety and consult professional help when necessary to ensure the safety and proper functioning of your dishwasher.

Whirlpool Dishwasher Diagnostic Mode

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