Electrolux Dishwasher Error Code Si

The Si code indicates that the dishwasher detected a water temperature above 78°C, which exceeds the safe operating limit. When this happens, the control board stops the wash cycle and activates the drain pump to remove the hot water. The fault points to the NTC temperature sensor, its wiring, or the control board as the source of the problem. In some cases, an actual overheating event caused by a stuck heating element can trigger the code legitimately.

Resetting the dishwasher by cutting power for a few minutes may temporarily clear the Si code, but it will return if the underlying fault is not corrected. The reset does not address a failed NTC sensor, damaged wiring, or a faulty heating element. It is best used only to confirm whether the fault is intermittent or persistent while you proceed with diagnosis.

Repair costs depend on which component has failed. An NTC sensor replacement is typically the least expensive fix, with parts generally ranging from $15 to $50 and labor adding $75 to $150 if a technician is hired. A control board replacement is the most costly scenario, with parts ranging from $100 to $300 or more plus labor. Getting a diagnostic visit to pinpoint the exact cause before committing to parts is advisable.

A knowledgeable DIYer can perform initial diagnostics such as inspecting the wiring harness for visible damage and testing the NTC sensor resistance with a multimeter. If the sensor resistance reads outside the expected range at room temperature, replacing the sensor is a straightforward repair. Heating element relay issues and control board replacements are more complex and may be better suited for a qualified technician.

You should not continue operating the dishwasher while the Si error is active. The machine has already shut down as a precaution because temperatures may have reached or exceeded 78°C. Running additional cycles without resolving the fault risks damaging internal plastic components, door seals, and potentially the dishes. Address the underlying cause before resuming normal use.