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Customer Questions and Answers for Turbidity Sensor (Aqua Sensor Assembly) by Bosch

4.89 (64)
By: Bosch
Part Number: OEM8407101
Manufacturer Part Number: 00165279

This turbidity sensor detects how clear the dishwasher's wash water is so the control can adjust cycle time, rinses, and water changes. Replacing a faulty sensor helps restore proper cleaning performance and normal cycle lengths.

  • Monitors soil level/clarity of the wash water
  • Signals the control to extend or shorten wash and rinse phases as needed
  • Helps optimize water use while maintaining cleaning results
  • Failure symptoms can include unusually long or short cycles, poor cleaning, repeated draining/refilling, or cycles that won't advance
What's included: 1 turbidity sensor assembly Install notes:
  • Disconnect power and turn off the water supply before servicing
  • Pull the dishwasher out as needed; access the sensor from the base area
  • Place a towel to catch residual water; release the locking tab or twist-lock, unplug the connector, and install the new sensor fully seated and locked
  • Restore power/water and run a test cycle; check for leaks

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Questions & Answers

For Bosch Turbidity Sensor (Aqua Sensor Assembly) (Part Number: OEM8407101)

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Answer

Craig, the sump filter will need to be removed, then water will need to be added until the sump is full. Once the sump is full, lift up on the float switch gently and the drain pump should start draining the water. Once the water is completely drained out, release the float and observe the sump. If water flows back into the sump, the check valve 00611320 has failed and would need to be replaced.

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Answered by AppliancePartsPros.com   |   Monday, October 28, 2019

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