In brief
Jenn-Air documents E24 as the oven reaching an overheat condition, at the temperature given in the table, with four suspects: the thermal sensor, the gas sensor, the appliance control board, or their wiring. Treat it as serious: switch the oven off, let it cool with the door closed, and do not use it again until the cause is found.
Error codes
Reference| Code | Meaning |
|---|---|
| E24 | The oven reached an overheat condition of 500F (260C). There may a problem with the Thermal Sensor, the Gas Sensor, the Appliance Control Board, or the associated wiring. |
What you observe
- Hot outer surfaces — The door, trim or control area hotter than usual.
- The oven runs hotter than the setting — Food browns or burns faster than the recipe expects.
- The code appears during an ordinary bake — At a normal setting, an overheat points at control or sensing rather than use.
- NEAR MISS: smoke during self-clean — Some smoke and odor are expected as soil burns off in a clean; a code is what marks a real overheat.
What triggers the code, in likelihood order
- The appliance control board keeping a heater on — Ranked first because an oven that actually overheats, as E24 reports, is most simply explained by a heater that is not switching off, and a stuck relay on the control board is how that usually happens.
- The thermal sensor — Named in the documented meaning; a sensor that misreads lets the control overshoot, or reports an overheat that is not there.
- The associated wiring — Named in the documented meaning; a heat-damaged lead can upset either the sensor reading or the heater circuit.
Diagnostic order, cheapest and safest first
- Check whether it is still heating — If the cavity keeps heating or an element glows with the oven off, switch off at the breaker now.
- Let it cool with the door closed — Leave the door shut until the cavity is cool, so any smoke or flame stays contained.
- Reset once, cold — With the oven cool, breaker off for a few minutes and then on.
Clearing the code and safe checks
- Switch off at the breaker if it keeps heating — If heat continues with the controls off, cut power at the breaker.
About 1 min
- Let the oven cool with the door shut — Keep the door closed until the cavity is cool.
About 60 min
- Clear the cavity — Once cool, remove foil, pans and anything resting on the floor or over the vents.
Tools: oven mittsAbout 5 min
- Stop here if the next check needs a meter — Testing a part or its wiring means live terminals or disassembly, which is technician work.
Safety before any check
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. If the oven keeps heating with its controls off, switch it off at the breaker and keep the door closed; an oven running away can set fire to anything in or near it.
When it is a service call
Call for service after any E24, and do not wait if the oven keeps heating with its controls off: switch it off at the breaker first. A real overheat and a misreading sensor both need testing before the oven is used again.
Neighboring Jenn-Air oven codes
What this reading does not cover
What this covers: E24 as Jenn-Air documents it for Jenn-Air ovens whose code list carries E24 as an overheat condition. What it does not cover: self-clean temperature codes, surface overheat codes, and models that read E24 differently, or the wiring colors, part numbers and test values of any one model. A model-specific page for your unit, where one exists, outranks this general reading.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
