Electrolux Range Error Code LEDs 3,4

LEDs 3 and 4 illuminated together on an Electrolux range indicate an incorrect EEPROM checksum error. The EEPROM is the memory chip on the electronic control board that stores the range's configuration and calibration data. When the board reads that data and the checksum does not match the expected value, it triggers this error. The range cannot operate reliably in this state and the control board must be replaced.

A power reset by unplugging the range or switching off the circuit breaker will not permanently clear this error. Because the underlying cause is corrupted or invalid EEPROM data stored on the control board, the checksum mismatch will reappear each time the board attempts to read its memory at startup. Replacement of the control board is the only resolution.

The cost to resolve this error depends primarily on the price of the replacement electronic control board and whether you use a professional technician or perform the repair yourself. Control board parts for Electrolux ranges generally range from around 150 to 400 dollars depending on the specific model. Adding professional labor, total repair costs typically fall between 250 and 600 dollars or more.

The required repair is replacement of the electronic control board. A knowledgeable DIYer comfortable working with appliance electronics can perform this replacement by disconnecting power, removing the back panel, and swapping the board. However, because this involves mains voltage wiring, anyone unfamiliar with electrical safety should hire a qualified technician.

It is not advisable to continue using the range while this error is active. The EEPROM stores calibration and configuration data that the board relies on to regulate temperature, burner behavior, and safety functions. With corrupted memory data, the control board may not correctly manage these functions, which presents both performance and safety risks.