KitchenAid Dishwasher Error Code Anti-Bacterial/Heavy + Normal Wash + China Gentle

This combination of illuminated cycle lights is a diagnostic fault code indicating that the turbidity sensor has reported a reading outside its expected operating range. The turbidity sensor monitors wash water clarity and helps the dishwasher adjust its cycle accordingly. When the sensor signal is out of range, the control board flags the fault using this specific light pattern. The dishwasher will not operate normally until the underlying cause is resolved.

Running the dishwasher with an active turbidity sensor fault is not recommended. Without a reliable soil-level reading, the control board cannot accurately manage cycle duration or water use, which could result in poorly cleaned dishes or wasted water and energy. It is best to resolve the fault before returning the appliance to regular use.

A power reset may temporarily clear the displayed fault code, but if the underlying problem with the turbidity sensor or its wiring still exists, the code will return during or after the next cycle. A reset is useful for confirming whether the fault is intermittent, but it does not substitute for proper diagnosis and repair of the sensor circuit.

Some causes of this fault, such as a dirty sensor lens or a loose wiring connector, can be addressed without special tools or training. Start by inspecting and cleaning the turbidity sensor lens located in the sump area, then check that the wiring harness connection is secure. If those steps do not clear the fault, replacing the sensor is a moderate DIY repair for someone comfortable working inside an appliance. A technician is recommended if the wiring harness shows complex damage or if the fault points to the control board.

If only cleaning the sensor resolves the issue, the repair costs nothing beyond your time. A replacement turbidity sensor typically costs in the range of $20 to $60 for the part alone, depending on the specific model. If a technician is needed for diagnosis and repair, expect total costs in the range of $100 to $250 including labor. Control board replacement, if required, would increase costs substantially.