Troubleshoot error code “E01” in Bosch dishwasher

  • Error: E01
  • Description: The dishwasher has detected a failure in the pump control circuit or a heating problem.
  • Cause: This could be due to a failure in the main control board or a defective temperature sensor or thermistor.
  • Solution: Check and, if necessary, replace the temperature sensor or thermistor. If the problem persists, it might be necessary to replace the control board.

Oh no! Is your Bosch dishwasher displaying the E01 error code? If you’re frustrated with this issue, don’t worry! Here at, we’ll guide you step by step to help you resolve this problem and have your dishes sparkling again without having to call a technician (unless absolutely necessary).

Understanding E01 Code

The E01 error code on your Bosch dishwasher typically indicates a problem with the pump control circuit on the main control board. In some models, this issue can lead to a lack of water in the dishwasher, preventing the heater from functioning correctly and triggering the error code.

Steps to Resolve E01 Error

  1. Check Water Supply: Ensure that the dishwasher is receiving water properly. Without water, the heater cannot function, and the E01 error might appear.
  2. Inspect Temperature Sensor or Thermistor: If you have basic knowledge of electricity and a multimeter, you can check the resistance of the temperature sensor or thermistor. If the multimeter shows “OL” (open circuit), you may need to replace this component.
  3. Restart the Dishwasher: Disconnect the dishwasher from the power source for 30 minutes. This may reset the system and sometimes resolve temporary electronic issues causing the E01 error.
  4. Inspect the Control Board: If you feel comfortable doing so and have the right tools, inspect the control board for signs of damage, such as burnt components or loose connections. However, this can be tricky, and if unsure, it’s best to leave it to a professional.
  5. Refer to the Manual: Check your Bosch dishwasher manual for specific instructions on how to access and assess these components. Each model may have slight differences in construction and troubleshooting.

When to Call a Technician

If the problem persists after following these steps, it might be time to call a certified Bosch technician. Sometimes, issues with the main control board are too complex to be resolved without specialized knowledge and proper tools.

Final Tips

  • Safety First: Always disconnect the dishwasher from the power source before attempting any repairs.
  • Use Genuine Spare Parts: Use only original Bosch spare parts to ensure compatibility and proper operation of your dishwasher.
  • Preventive Maintenance: Perform regular cleanings and maintenance on your dishwasher to prevent future issues.

Remember, at, we are here to help with any questions you have about your appliances. Feel free to reach out to us!

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