Electrolux Range Error Code C-23

The C-23 error code on an Electrolux range indicates an oven overheating condition, meaning the oven cavity temperature has exceeded its safe operating limit. This is a protective fault triggered by the control system when the thermal monitoring circuit detects temperatures beyond the acceptable threshold. The fault can involve any of the three primary heating elements: the broil heater, the bake heater, or the convection heater. When any one of these elements malfunctions in a way that allows uncontrolled heat delivery, the control board registers the overtemperature condition and locks out operation to prevent damage to internal components or a potential safety hazard.

Diagnosis begins by physically inspecting the broil, bake, and convection heaters and measuring the resistance of each element. A shorted or internally failed heater can draw excessive current and generate heat even when the relay is supposed to be off, leading to runaway temperature rise. Resistance readings outside the specified range for each heater indicate a failed element that needs replacement.

In addition to the heaters themselves, the relay circuit on the sub PCB must be evaluated. Specifically, the DLB (double line break) relays responsible for switching the broil, bake, and convection heaters should be tested to confirm they are opening and closing correctly. A welded or stuck-closed relay contact will keep a heating element energized continuously regardless of control board commands, directly causing the overheating condition that triggers C-23.