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I am facing E28 error code in Bosch Dishwasher: Model : SHE3AR72UC/22. The error states Aqua sensor calibration Failure. Any idea how to re calibrate it.


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Posted
Manufacturer: Bosch
Type of Appliance: Dishwasher
Model Number: SHE3AR72UC/22
Have you validated the model number at an online parts site like Repair Clinic? (yes or no): Yes
Have you watched the video on how to search for manuals and have you searched the Downloads section prior to posting this request? (yes or no): Yes

I am facing E28 error code in Bosch Dishwasher: Model : SHE3AR72UC/22. The error states Aqua sensor calibration Failure. Any idea how to re calibrate it.

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Posted

I think they're just using unclear terminology -- I don't believe there is a calibration procedure for the aqua sensor. At least, there isn't one given in the manual.

Looks like it's just an optical turbidity sensor. To "calibrate" it, they just say to clean off the sensor, check the wire harness, and then replace it if you're still getting the error code.

 


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