What Are the Error Codes for a Bosch Dishwasher

Bosch dishwashers are renowned for their efficiency and advanced features, making kitchen chores a breeze. However, like any sophisticated appliance, they may encounter issues, often indicated by error codes. In this article, we’ll delve into the world of Bosch dishwasher error codes, decoding their meanings, providing troubleshooting tips, and offering preventive measures to keep your dishwasher running smoothly.

What Are the Error Codes for a Bosch Dishwasher?

Bosch dishwashers have become a staple in modern kitchens, offering cutting-edge technology to simplify our lives. Understanding the error codes that may appear on your dishwasher’s display is crucial for effective troubleshooting. Let’s explore the common error codes and what they signify.

Common Error Codes and Their Meanings

E15: Water Inlet Issue

The E15 error points to a problem with the water supply. This section will guide you through checking water inlet connections and ensuring a smooth water supply.

E24: Drainage Problems

Drainage issues can lead to the E24 error. Discover steps to unclog drains and prevent this error from disrupting your dishwashing routine.

E09: Heating Element Failure

A malfunctioning heating element can trigger the E09 error. Learn how to identify and replace a faulty heating element for optimal dishwasher performance.

E25: Faulty Drain Pump

The E25 error signals problems with the drain pump. Find out how to inspect and troubleshoot the drain pump to overcome this issue.

E22: Door Lock Issue

If your dishwasher door isn’t locking properly, the E22 error may appear. This section provides insights into fixing door lock problems.

E01: Water Supply Issue

Discover the steps to address water supply issues leading to the E01 error, ensuring a consistent flow of water for efficient dishwashing.

E02: Heating Element Issue

Additional details on resolving issues related to the heating element, which can trigger both E09 and E02 errors.

E16: Overdosing of Detergent

Using too much detergent can result in the E16 error. Uncover tips on preventing detergent overdosing and maintaining optimal dishwasher performance.

E14: Flow Heater Issue

Understanding and troubleshooting the E14 error related to flow heater problems for a seamlessly functioning dishwasher.

E17: Water Level Too High

If the water level is too high, the E17 error may occur. Learn how to adjust water levels and prevent this error from recurring.

E23: Leak Detection

Insights into detecting and fixing leaks, which trigger the E23 error, safeguarding your kitchen from potential water damage.

E04: Motor Fault

Explore steps to diagnose and address motor faults causing the E04 error, ensuring your dishwasher’s motor operates smoothly.

E27: Diverter Valve Fault

Understanding and resolving issues with the diverter valve, a common culprit behind the E27 error.

E03: Faulty Motor Control Board

Insights into identifying and fixing problems with the motor control board, linked to the E03 error.

E18: Water Temperature Sensor Fault

Details on troubleshooting issues related to the water temperature sensor, often indicated by the E18 error.

Troubleshooting Tips for Common Errors

Steps to Resolve E15 Error

  1. Check water inlet connections.
  2. Ensure a consistent water supply.
  3. Inspect the water inlet valve for blockages.

How to Fix Drainage Issues (E24)

  1. Clear clogged drains.
  2. Inspect the drain hose for kinks or obstructions.
  3. Ensure the drain pump is functioning correctly.

Addressing Heating Element Problems (E09, E02)

  1. Identify a faulty heating element.
  2. Replace the heating element following manufacturer guidelines.

Dealing With Detergent Overdosing (E16)

  1. Use the recommended amount of detergent.
  2. Clean the detergent dispenser regularly.

Tips for Resolving Door Lock Issues (E22)

  1. Check for obstructions preventing proper door closure.
  2. Inspect the door lock mechanism for damage.

When to Seek Professional Help

While many issues can be resolved with DIY fixes, there are situations where professional assistance is necessary.

Importance of Reading the User Manual

Always refer to the user manual for specific troubleshooting instructions tailored to your dishwasher model.

Situations Where DIY Fixes May Not Be Sufficient

If issues persist after attempting DIY solutions, it’s advisable to seek professional help to prevent further damage.

Contacting Bosch Customer Support

Bosch provides excellent customer support. Reach out to their helpline for expert guidance on complex issues.

Preventive Measures to Avoid Error Codes

Regular Maintenance Tips

  1. Clean the dishwasher filter regularly.
  2. Inspect and clean spray arms.
  3. Check for and address leaks promptly.

Proper Loading of Dishes

  1. Follow the recommended loading guidelines.
  2. Avoid overloading the dishwasher.

Using Recommended Detergents

Choose detergents specifically designed for Bosch dishwashers to prevent soap-related issues.

Checking Water Supply and Drainage

Regularly inspect water inlet and drain connections for any signs of issues.


In conclusion, understanding and addressing Bosch dishwasher error codes is essential for maintaining optimal performance. By following the outlined troubleshooting tips and preventive measures, you can keep your dishwasher running smoothly. Remember to consult the user manual and seek professional help when needed.


  1. Can I use any detergent in my Bosch dishwasher?
    • While you have some flexibility, using detergents recommended by Bosch is ideal to prevent potential issues.
  2. What should I do if the error persists after troubleshooting?
    • If DIY fixes don’t resolve the problem, contact Bosch customer support or seek professional assistance.
  3. How often should I clean the dishwasher filter?
    • Regularly clean the filter every 2-3 months to ensure optimal performance.
  4. Is it normal for my dishwasher to make some noise during operation?
    • Some noise is typical, but excessive or unusual sounds may indicate an issue. Refer to the user manual for guidance.
  5. Can I repair the dishwasher myself if it’s still under warranty?
    • It’s advisable to contact Bosch customer support or authorized service providers to avoid voiding the warranty.
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