Electrolux Dishwasher Error Code FB

The FB code indicates a spray arm divider fault. Specifically, the position contact that monitors the divider's movement is reading as continuously open or continuously closed, meaning the control board cannot confirm the divider is cycling properly. The dishwasher will still complete wash cycles normally, but this fault is logged and visible only through the service menu. Wash performance may be affected if water is not being distributed evenly between spray arms.

The FB fault does not stop the dishwasher from operating, and there is no immediate safety hazard associated with this code. However, if the spray arm divider is not functioning correctly, water may not be reaching all spray arms during the cycle, which can result in poorly cleaned dishes. It is reasonable to continue using the appliance while arranging a repair, but washing results may be inconsistent.

Repair costs vary depending on the failed component. If only a wiring connection needs to be reseated or a minor obstruction cleared, costs may be minimal, covering only a service call fee in the range of $75 to $150. If the gearbox or position contact switch requires replacement, parts and labor combined typically range from $150 to $350, depending on parts availability and local labor rates.

A basic power reset is unlikely to permanently clear the FB code because the fault reflects an underlying hardware condition with the gearbox, position contact, or wiring. The code will typically reappear once the dishwasher runs a cycle and the control board detects the same contact state again. The root cause needs to be identified and repaired to resolve the fault properly.

Start by checking for any physical obstructions around the spray arm divider at the bottom of the dishwasher tub. If no blockage is found, the next step is inspecting the wiring harness and connectors running to the gearbox assembly for damage or loose connections. If wiring is intact, the gearbox or the position contact switch itself likely needs to be tested and potentially replaced. This repair typically requires accessing internal components, so a qualified technician is recommended if you are not comfortable with appliance disassembly.