Dual-fuel range oven shows E12 and shuts off mid-cycle, often during high-temperature baking or self-clean.

Safety first: Turn off power and allow the oven to cool completely before servicing. Surfaces and components can remain hot for an extended period.

Steps:

• Check cooling fan operation: During a bake cycle, the internal cooling fan should run. If you do not hear it, disconnect power and access the fan (usually behind the rear panel or above the oven cavity). Spin the blades by hand and check for obstructions.
• Test fan motor: With a multimeter, verify that the fan receives voltage when the oven is calling for cooling. If voltage is present but the fan does not run, replace the fan motor.
• Inspect vents: Ensure that the oven vent openings (typically at the back of the cooktop or control panel area) are not blocked by foil, pans, or debris.
• Check high-limit thermostat: Locate the high-limit thermostat or thermal fuse (often on the top of the oven cavity or rear). Test for continuity. If open, replace with the exact OEM part.
• Control calibration: After replacing components, verify oven temperature calibration with an accurate oven thermometer. If the oven consistently overshoots set temperature, the control may need recalibration or replacement.

Warning: Do not bypass or jumper high-limit devices for normal operation; they are critical safety components.