Electrolux Dishwasher Error Code Er 10

Er 10 indicates a detected failure in the mains power relay, which is an electrical switching component on the main control board. This relay controls high-voltage power delivery to the dishwasher's core components such as the wash motor and heating element. When the relay fails to operate correctly, the dishwasher stops running and displays this code to alert the user or technician to the fault.

You should not attempt to operate the dishwasher while Er 10 is active. A failed mains relay represents an electrical fault that could cause improper power delivery to internal components. Continuing to run the appliance risks further damage to the control board or other electrical components and could present a safety hazard.

A power reset by unplugging the dishwasher or switching off its circuit breaker for a few minutes may temporarily clear the code, but it will return if the underlying relay fault is still present. Because Er 10 points to a hardware component failure rather than a software glitch, a reset alone is not a fix. The relay or control board issue must be physically diagnosed and resolved to permanently clear the fault.

The repair involves working with high-voltage electrical components on the main control board, which carries risk if you are not experienced with appliance electronics. A knowledgeable DIYer comfortable with electronics may be able to inspect and reseat wiring harness connectors as a first step. However, replacing the relay or the control board typically requires disassembly skills and comfort with electrical safety precautions, so many homeowners choose to have a qualified technician perform this repair.

Repair costs vary depending on whether the main control board needs full replacement or if a targeted component repair is performed. Control board replacement parts alone typically range from $80 to $250 or more depending on the model, and professional labor can add $100 to $200 on top of that. Getting a diagnostic quote from a technician before authorizing repairs is recommended.