Kenmore Oven F3 error code
The oven temperature sensor circuit is open. The control cannot read the oven temperature, so it refuses to heat.
Also shown as: F3
Last updated: October 6, 2026
What causes the F3 error?
- Open or broken oven temperature sensor
- Loose or disconnected sensor wiring
- Corroded sensor connector
- Failed control board not reading the sensor
How to fix Kenmore F3 — step by step
Work through these in order, from simplest and safest first. Stop as soon as the code clears.
- Power-cycle the range
Flip the range breaker off for 1 minute and back on. If F3 returns, the sensor circuit has a real break. - Look at the sensor
With the breaker off, open the oven and find the thin metal sensor rod on the back wall. Look for visible damage, and check that its mounting screws are snug. Do not pull on it.Safety warning: Turn off the breaker before inspecting inside the oven. - Have the sensor tested
A technician will check the sensor's resistance, which should be about 1100 ohms at room temperature. An open (infinite) reading means the sensor needs replacement.
When to call a technician
- F3 returns after a breaker reset
- The sensor tests open or far above about 1100 ohms
- Sensor wiring or connectors are damaged
- The sensor or control board needs replacement
Frequently asked questions
What does F3 mean on a Kenmore oven?
It means the oven temperature sensor circuit is open. The control cannot see the oven temperature, so it will not heat.
Where is the oven temperature sensor?
Inside the oven cavity, a thin metal rod a few inches long mounted on the back wall.
Can I bake with F3 showing?
No. The oven will not heat while this code is active because it cannot regulate temperature.
Sources
Every meaning and fix above was checked against official manufacturer documentation:
FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.