Short answer first
Jenn-Air documents F1-1 as a possible problem with the oven temperature sensor, the control or the associated wiring. The sensor tells the control how hot the oven is; without a reading it can trust, the control usually stops heating. Do not use the oven until the code is cleared and stays clear.
Error codes
Reference| Code | Meaning |
|---|---|
| F1-1 | There may be a problem with the Oven Temperature Sensor, the Control, or the associated wiring. |
What you will notice
- Food burned or undercooked before the code — Results went wrong for a while, and the code showed up later.
- Results swing from dish to dish — Burnt edges one day and pale results the next follow a sensor whose reading drifts.
- NEAR MISS: temperature slightly off with no code — A small, steady offset is a calibration matter, and many controls let you adjust it from the settings.
What triggers the code, in likelihood order
- The oven temperature sensor itself — Ranked first when F1-1 comes after temperatures that wandered: a sensor drifting out of range reads wrong before it fails outright, and the control regulates to the wrong reading.
- A probe knocked toward the cavity wall — Inside the oven the probe should stand clear of the wall; one bent against it by a rack reads the wall rather than the air.
- The control reading the sensor — Named in the documented meaning, but concluded last: it is replaced only after the sensor and its wiring measure good.
Check in this order
- Compare with an oven thermometer — If the oven still heats, a separate thermometer shows whether it is regulating far off its setting.
- 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.
What an owner can safely do
- Run a thermometer check — If the oven will still heat, place an oven thermometer in the center and compare it with the setting once the oven has settled.
Tools: oven-safe thermometerAbout 30 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 first
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. An oven that keeps heating with a sensor code can overheat; if that happens, switch it off at the breaker rather than at the panel.
When it is a service call
Call for service if F1-1 returns after a reset, or at once if the 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.
Neighboring Jenn-Air oven codes
Generalized information
This is the generalized reading of F1-1 across the Jenn-Air oven line. It applies to Jenn-Air ovens whose code list carries F1-1 as a temperature-sensor fault. It does not apply to meat-probe codes, microwave and cooktop sensor codes, and models that read F1-1 differently, and the same characters can mean something else on another brand. Where a model-specific page exists for your model line, it is the more specific answer and comes first.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
