F3E0 names the upper oven temperature sensor, the control or the wiring on a JennAir built-in microwave.
Model compatibility: JennAir reuses codes across series and model years, so F3E0 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
JennAir lists a possible problem with the upper oven temperature sensor, the control, or the associated wiring.
The word to notice: upper
For a JennAir built-in microwave, F3E0 means the upper oven temperature sensor, the control, or the associated wiring may have a problem.
Reset to try
Breaker off; wait a minute.
Breaker back on.
Look at the display for a minute, watching for F3E0.
Make sure the oven operates.
Upper and lower
A sibling entry, F3E1, carries the same wording but names the lower sensor. A display reading F3E0 therefore leans toward the upper one. How the numbers map to a specific door or cavity in your installation is not explained in the articles, so check the owner materials for that.
If it repeats
No further owner steps come from JennAir. A meter is used to test sensor circuits, and the control and wiring share the suspect list, so service is the logical move. Leave panels in place instead of hunting for the sensor yourself.
Gather this before calling
Note the exact code, whether it appeared during cooking or while the unit sat idle, and whether it returned after the breaker reset. JennAir’s article has none of this, but it costs nothing to collect and saves time on the phone. The model number also helps a technician confirm which sensor “upper” means.
JennAir built-in microwave and oven repair in Los Angeles
If F3E0 returns, call (310) 622-9465 in Los Angeles with the code, the model number and the news that you did the breaker reset. The microwave repair page has more on our work.
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.
