Short answer first
Jenn-Air documents F3 E6 as a possible problem with the lower oven temperature sensor, the control or the associated wiring. The sensor tells the control how hot the lower oven is; without a reading it can trust, the control usually stops heating. Do not use the lower oven until the code is cleared and stays clear.
Error codes
Reference| Code | Meaning |
|---|---|
| F3 E6 | There may be a problem with the Lower Oven Temperature Sensor, the Control, or the associated wiring. |
What you will notice
- The code appears at the start of preheat — The oven begins to heat and the code shows within moments, before the cavity is warm.
- Preheat overshoots or never finishes — A sensor reading wrong makes the control heat too long or stop too soon.
- NEAR MISS: the cavity never warms at all — No heat and no sensor code points at the heating element or its supply, a different fault.
What triggers the code, in likelihood order
- The lower oven temperature sensor itself — Ranked first when F3 E6 appears as soon as the lower oven starts heating: a sensor that has failed open or shorted gives an impossible reading straight away, and it is the part the reading comes from.
- The sensor connector behind the oven — The sensor plugs into the harness at the back wall; a connector pulled half off, corroded or heat-darkened breaks the reading.
- Sensor wiring damaged by heat or pinching — The leads run behind the cavity insulation; heat hardens them, and a range pushed hard against the wall can pinch them.
Check in this order
- Look at the probe in the cavity — With the oven cool, find the probe near the top rear of the cavity and check it stands clear of the wall and is not bent or loose.
- Reset and note the timing — Power-cycle at the breaker, preheat once, and note whether the code returns at once or only when hot.
- Check what came before — A code that started after a self-clean or after the range was moved points at heat or pinch damage to the sensor wiring.
Reset and owner-safe checks
- Reset the control — Switch the oven off at the breaker for a few minutes, then back on.
About 5 min
- Inspect the sensor probe — With the oven cool and off at the breaker, look at the probe at the top rear of the cavity; if it has been knocked toward the wall, note it for the technician rather than bending it.
Tools: flashlightAbout 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. The sensor probe sits inside a cavity that stays hot long after cooking, and its connector is behind the oven next to live terminals; inspect only the visible probe, with the oven cool and off at the breaker.
Reset or service call?
Call for service if F3 E6 returns after a reset, or at once if the lower oven keeps heating with the code showing or runs far hotter than its setting. Measuring the sensor and its harness against the model's specification is the test that decides the repair, and it needs a meter and the oven's rear connections.
Nearby codes on the same oven line
What this reading does not cover
Scope: the documented meaning of F3 E6 for the lower oven of Jenn-Air double ovens whose code list carries F3 E6 as a temperature-sensor fault. Out of scope: meat-probe codes, microwave and cooktop sensor codes, and models that read F3 E6 differently; so is model-level detail such as connector positions and part numbers. A model-specific page, where one exists, is the more precise source.
Related Jenn-Air oven codes
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