Electrolux Cooktop Error Code E91

The E91 code indicates an internal generator error involving the synchronization of the two cook zones on the right induction module. The right side generator circuit board is responsible for coordinating these zones, and when sync is lost, the cooktop triggers this fault code. The affected cooking zones will typically stop functioning until the issue is resolved.

No, you should stop using the affected cooking zones when E91 is active. The error signals a failure in the internal generator circuitry, and continued operation could worsen the fault or pose a safety risk. Disconnect the appliance from power until the issue is properly diagnosed and repaired.

Repair costs depend on whether the issue is a simple wiring connection fix or requires a full generator circuit board replacement. Labor charges for a technician visit typically range from around $80 to $150, while a replacement right side generator circuit board can add another $100 to $300 or more depending on the specific model. Getting a repair estimate before proceeding is advisable, as the total cost should be weighed against the age of the appliance.

The first diagnostic step is to check the cables and connections on the right generator circuit board, which a knowledgeable DIYer can attempt after fully disconnecting power to the unit. However, if the board itself has failed, replacing it requires disassembling the cooktop and working with high-voltage power electronics components. For board replacement, hiring a qualified appliance technician is strongly recommended to avoid injury or further damage.

A power reset by disconnecting the cooktop from its power source for several minutes may temporarily clear the error display, but it will not resolve the underlying hardware fault. If the generator board or its wiring connections are defective, the E91 code will return once the unit is powered back on and the affected zones are used. A proper repair of the wiring or board replacement is required for a permanent fix.