Kenmore Range Error Code Er

The Er error code on a Kenmore range indicates an ESEC (Electronic Surface Element Control) system fault. This error appears as a blinking display when power is first connected to the range or when power is restored after an outage. The key trigger condition is that one or more of the four surface element control knobs is found in the ON position at the moment power is applied. The ESEC system performs a startup self-check and, upon detecting an active burner control signal without a deliberate user input cycle, flags this as an error state to prevent unintended heating.

The ESEC module governs the electronic control of the surface burner elements, managing power delivery based on knob position signals. When the controller initializes and detects a knob left in the ON position, it cannot confirm whether this represents a deliberate command or an unsafe condition left over from before the power interruption. Rather than activate an element without confirmation, the system enters a fault hold state and displays Er to alert the user.

This error is primarily a safety interlock response rather than an indication of a failed component. In most cases, turning all four surface element control knobs fully to the OFF position will satisfy the ESEC module's startup check and clear the blinking display, after which the clock will need to be reset. If the Er code persists even after all knobs are confirmed in the OFF position, this points to a potential fault within the ESEC control module itself or a knob position sensor issue, and a qualified service technician should diagnose the unit further.