E24 reports an oven overheat at 500F (260C); sensors, the control board or wiring may be at fault.
Model compatibility: KitchenAid 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
Oven reached an overheat condition of 500F (260C); possible thermal sensor, gas sensor, control board or wiring problem.
Seeing E24 means the KitchenAid microwave logged an overheat in its oven: 500F (260C), in KitchenAid’s figures. The company ties the code to no cause an owner can act on. It names a handful of components that might be at fault.
Components in the support page
Thermal sensor, which measures heat and sends the reading to the control.
Gas sensor, a second sensing component listed against E24.
Appliance control board, the electronics that make the oven’s decisions.
Associated wiring, the connections among the above.
Each is presented as a maybe. The page ranks none and describes no owner test for a sensor.
Why the number matters
A stated temperature gives this entry more substance than most. Two readings fit: the oven really got that hot, or the control only believed it did, which is possible because a sensor fault is on the list. KitchenAid does not pick one.
Reset in the article
Switch the microwave’s breaker(s) off and wait a minute.
Switch the breaker(s) on.
Watch the unit for one minute to see whether E24 reappears.
Check that it works normally again.
The article ends with the option to schedule service. Should E24 reappear, sensors and board need a technician’s attention.
Codes to compare
E23: the reverse problem, where preheat temperature was never reached
E21 and E22: thermal sensor circuit reported open or shorted
For KitchenAid microwave service in Los Angeles, ring (310) 363-8964 if E24 repeats. Name the model number and tell us whether the reset cleared the code, even for a moment.
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 KitchenAid appliance?
Book a specialist visit for a clear estimate and approval before any repair.