Electrolux Dishwasher Error Code iB2

The iB2 code means the turbidity sensor did not have enough optical signal to complete its calibration at the start of a wash cycle. This sensor measures how dirty the water is so the machine can adjust the cycle automatically. The most common cause is a sensor coated with grease, limescale, or food residue. Note that on some display models the letter B may appear as H, so iH2 and iB2 refer to the same fault.

Yes, the dishwasher is safe to operate with an active iB2 code. When this error is present, the machine defaults to running the cycle as if the dishes have a high level of soiling, so your dishes will still be cleaned. The main downside is that cycles may run longer and use more water and energy than necessary until the sensor is repaired.

If the sensor only needs cleaning, the cost is minimal, typically just a descaling product and your time. If the turbidity sensor needs to be replaced, the part itself generally runs in the range of $20 to $60 depending on the model. Adding professional labor for the diagnosis and replacement could bring the total repair cost to somewhere between $100 and $200, though this varies by region and service provider.

In most cases, yes. Start by locating the turbidity sensor, which is typically mounted in the sump area at the bottom of the dishwasher tub, and cleaning its optical window with a soft cloth and a mild descaling or degreasing solution. Run a cycle after cleaning to see if the code clears. If the error persists after a thorough cleaning, the sensor itself may need to be replaced, which is a straightforward part swap for a reasonably confident DIYer.

A reset may temporarily clear the code from the display, but it will return at the next cycle if the underlying sensor issue has not been resolved. The calibration failure is detected fresh at the start of each wash cycle, so the code will keep coming back until the sensor is either cleaned or replaced.