Electrolux Dishwasher Error Code b0

The b0 code indicates a turbidity sensor fault where the sensor did not reach its calibration signal within 15 seconds at the start of a cycle. The turbidity sensor monitors water clarity to help the dishwasher adjust wash intensity. When the calibration fails, the dishwasher defaults to assuming the water is always dirty and adjusts the program flow accordingly. The machine will still operate, but efficiency may be reduced until the sensor issue is corrected.

A reset may temporarily clear the b0 code, but if the underlying cause is not addressed, the code will return when the next cycle attempts sensor calibration. If the fault is caused by a dirty lens or a briefly loose connection, a reset after cleaning or reseating the connector could resolve it permanently. For a failed sensor or control board, a reset alone will not provide a lasting fix.

If only cleaning or a wiring reconnection is needed, the cost can be minimal, essentially just your time. A replacement turbidity sensor typically runs in the range of $20 to $60 for the part, depending on the specific model. If a technician is needed for diagnosis and replacement, labor costs can bring the total to somewhere between $100 and $250. A main control board replacement, if that is the root cause, is a more expensive repair and can range from $150 to $400 or more including labor.

In many cases, yes. Start by cleaning the turbidity sensor lens at the bottom of the tub near the sump, as grease and mineral buildup are the most common triggers. Also check that the sensor's wiring connector is firmly seated and free of corrosion. If cleaning and reseating the connection does not clear the fault, the sensor itself may need to be replaced, which is a moderately straightforward repair for someone comfortable working with appliance components.

The dishwasher is designed to continue operating when the b0 code appears, so it is generally safe to use. The control board compensates by assuming maximum turbidity and adjusting the wash program accordingly. However, running the machine in this default mode long-term may result in higher water and energy consumption. Addressing the sensor fault promptly will restore normal efficiency.