Published September 2, 2026Updated October 17, 2026
Content status:
Verified
Error codeE24
ApplianceMicrowave
Quick answer
E24 reports an overheat condition of 500F (260C) on a JennAir over-the-range microwave; thermal sensor, gas sensor, control board or wiring are named.
Model compatibility: JennAir reuses codes across series and model years, so E24 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
E24 means the oven reached an overheat condition of 500F (260C); two sensors, the control board or wiring may be at fault.
Why E24 is different
Among the codes on JennAir’s over-the-range microwave page, E24 stands out because it includes a temperature. The text says the oven reached an overheat condition of 500F (260C).
What JennAir lists
Thermal Sensor: a part that reads temperature for the control.
Gas Sensor: a detector the control uses; no further detail comes from JennAir.
Appliance Control Board: the circuit board in charge of the microwave.
Associated wiring: the connections among those parts.
The wording is that there “may be a problem” with them. They are not ranked, and the page does not describe how the oven got that hot.
Steps to take
Turn the breaker off and keep it that way for one minute.
Turn it on.
Over the next minute, watch whether E24 appears again.
Check that the microwave works.
No other owner action is listed. Because the code concerns excess heat, a returning E24 calls for service. Until then, leave the unit idle to cool; hot surfaces can burn.
E24 questions
Is something burning when E24 shows? JennAir only reports an overheat condition of 500F (260C) and the list of possible faulty parts. Smoke and fire are not mentioned.
What is a gas sensor doing in the list? It is one of four possible problem areas, and no explanation of its role in this code is given.
Codes that relate
E23: pre-heat temperature not reached within 30 minutes, the opposite trouble
E21 and E22: thermal sensor circuit open or shorted
Phone (310) 622-9465 and give us the code E24. We would like to know whether you ran the breaker reset and if the display returned. Our microwave repair page has more.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your JennAir appliance?
Book a specialist visit for a clear estimate and approval before any repair.
