Kenmore Range Error Code F23

The F23 error code on a Kenmore range indicates that the main control board, also called the Electronic Oven Control (EOC), has lost communication with the Variable Speed Convection Board. This secondary board is responsible for managing the convection fan motor speed during baking and roasting cycles. The EOC continuously monitors the communication link to this board, and when that link is interrupted or returns unexpected signals, F23 is triggered. This code is specific to ranges equipped with variable-speed convection systems, which use a dedicated board rather than a simple single-speed fan relay.

The most logical starting point for diagnosis is the wiring harness connection between connector P6 on the EOC and connector P1 on the Variable Speed Convection Board. A loose, corroded, or damaged connector at either end can interrupt the data signal between the two boards. Heat cycling inside the range can cause connectors to expand and contract over time, leading to intermittent or permanent connection failures. Inspecting both connectors for bent pins, burned contacts, or debris should be completed before replacing any components.

If the wiring harness and connectors are intact and secure, the fault likely resides in one of the two boards themselves. The Variable Speed Convection Board may have failed due to a power surge, component failure, or prolonged heat exposure. Less commonly, the EOC itself may have developed a fault in the communication circuit. Distinguishing between the two boards typically requires substitution testing or detailed voltage and signal checks along the harness.