Bosch Dishwasher Error Code E06: How to Fix It

Easy 20-30 minutes Medium Severity Verified June 2026
Error Code
E06
Brand
Bosch
Product Type
dishwasher
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
20-30 minutes
The E06 error code on your Bosch dishwasher indicates an aqua sensor fault, which means the sensor that monitors water quality and clarity is dirty or blocked. This sensor helps optimize wash cycles by detecting how dirty the water is, and when it's clogged, your dishwasher can't function properly.
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Tools You'll Need

How to Fix Error Code E06

  1. Turn off and disconnect power

    Always disconnect power before servicing appliances to prevent electrical shock.
  2. Remove the bottom dish rack

  3. Locate and remove the cylindrical filter

  4. Find the aqua sensor

  5. Clean the aqua sensor port

    Be gentle when cleaning the sensor - do not use abrasive materials or excessive force as this could damage the sensor.
  6. Clean the filters thoroughly

  7. Reassemble the components

  8. Restore power and test

Parts You May Need

Dishwasher filter assembly
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Dishwasher filter assembly
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Dishwasher cleaner
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Dishwasher filter assembly
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Dishwasher cleaner
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Dishwasher filter assembly
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Dishwasher cleaner
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Dishwasher filter assembly
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Dishwasher cleaner
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Dishwasher filter assembly
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When to Call a Professional

Call a professional if the E06 error persists after multiple cleaning attempts, if you notice the sensor port is cracked or damaged, or if you're uncomfortable accessing internal components. A technician may need to replace the aqua sensor or check for electrical connection issues.

Frequently Asked Questions

Why does my Bosch dishwasher keep showing E06 error?
The E06 error typically recurs when the aqua sensor port isn't cleaned thoroughly or when there's excessive grease buildup. Make sure to clean the sensor port regularly and run periodic cleaning cycles with dishwasher cleaner to prevent buildup.
Can I still use my dishwasher with E06 error?
While the dishwasher may still run with E06 error, it won't operate efficiently. The aqua sensor helps optimize wash cycles, so dishes may not get properly clean and cycles may take longer than normal.
How often should I clean the aqua sensor?
Clean the aqua sensor and filters monthly if you use your dishwasher daily, or every 2-3 months for moderate use. More frequent cleaning may be needed if you have hard water or frequently wash very greasy dishes.
What causes the aqua sensor to get dirty?
Food particles, grease, soap scum, and mineral deposits from hard water can accumulate on the aqua sensor. Not pre-rinsing dishes and using too much detergent can accelerate buildup.
Is the aqua sensor the same as the wash sensor?
Yes, the aqua sensor is also called the wash sensor or turbidity sensor. It monitors water clarity during the wash cycle to determine how dirty the dishes are and adjust the cycle accordingly.