What the code means
F1 means the control cannot get a believable temperature reading from the oven temperature sensor: the sensor, the control or the wiring between them is suspect. Treat the oven as out of service, because an oven regulating on a bad reading can run far too hot or too cool.
Error codes
Reference| Code | Meaning |
|---|---|
| F1 | There may be a problem with the Oven Temperature Sensor, the Control, or the associated wiring. |
What the oven does alongside the code
- The code first appeared after a self-clean — The oven worked before the clean cycle and has raised the code since.
- An element runs without cycling off — A control that reads the cavity as cold keeps heating; if you see this, switch off at the breaker.
- 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.
Likely causes, ranked
- Sensor wiring damaged by heat or pinching — Ranked first when F1 first appeared after a self-clean: the clean cycle runs the cavity far hotter than baking, and the sensor's wiring and connector take the brunt of it.
- A failed or drifting oven temperature sensor — A sensor that reads wrong, or not at all, is the most direct way to produce this code, and it is a part that wears.
- 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.
What to check first, and why
- 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.
- 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.
Clearing the code and safe checks
- Reset the control — Switch the oven off at the breaker for a few minutes, then back on.
About 5 min
- Record when it happens — Note whether the code appears at preheat, mid-bake or after a clean; it decides the order of a technician's tests.
Tools: notebook or phoneAbout 2 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.
Before you open anything
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?
Once the probe looks sound and F1 still returns, book a technician to measure the sensor, its connector behind the oven and the control input. Keep the oven off at the breaker if it ever heats with the code displayed.
Neighboring Jenn-Air oven codes
Scope of this code reading
Scope: the documented meaning of F1 for Jenn-Air ovens whose code list carries F1 as a temperature-sensor fault. Out of scope: meat-probe codes, microwave and cooktop sensor codes, and models that read F1 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.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
