Kenmore Range F3-E0 Error: Oven Temperature Sensor Open Circuit
The kenmore range f3-e0 error is a fault signal from the control board — this guide walks through what it means, common causes, and safe diagnostic steps. What Does Kenmore Range Error Code F3-E0 Mean? F3-E0 on a Kenmore 790-series electric or dual-fuel range stands for Oven Temperature Sensor Open Circuit. The Electronic Oven Control […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. The oven will not heat while F3-E0 is active, so there is no immediate burn risk, but the range should not be used for oven cooking until the sensor or wiring is repaired and normal operation is restored.
Can I reset the code?
No. F3-E0 is caused by a physical open circuit in the sensor or its wiring. A power reset will temporarily clear the code display, but F3-E0 returns within seconds of the next cook attempt because the underlying open circuit is still present.
When to stop immediately?
Stop if you notice: The oven produces no heat at any setting after F3-E0 appears, Sensor resistance tests confirm an open circuit — do not attempt to operate the oven without replacing the sensor.
Symptoms You May Notice
Oven refuses to heat at any bake or broil temperature setting
Because the control board has no temperature feedback, it blocks the bake and broil relays from energizing. The control panel accepts button inputs and the display shows the set temperature, but the oven never warms up.
F3-E0 appears within seconds of starting a cook cycle
The EOC board tests the sensor circuit at the start of every cook cycle. An open sensor is detected immediately, before any heating occurs, causing F3-E0 to appear and the cycle to abort within seconds.
Oven temperature display shows a very low, fixed, or dashed reading
An open-circuit sensor may cause the display to show an unrealistically low temperature (near room temperature or below) that never changes during preheat, or to show dashes in place of a numeric temperature.
Bake and broil indicator lights never illuminate after Start
Pressing Start for a bake or broil cycle produces the usual confirmation beep, but the element activity icons on the display never light up. No glow is visible from the elements inside the oven cavity.
Possible Causes
Failed oven RTD temperature sensor — open circuit
The resistance element inside the RTD probe has broken, creating an open circuit. This is the most common cause and by far the most straightforward repair — the sensor is an inexpensive, user-replaceable part.
DIY PossibleBroken or disconnected sensor wiring harness
The wiring harness connecting the RTD sensor to the EOC board has a broken conductor, a pulled-out pin at a connector, or a connector that has backed off the board or sensor terminals — producing an open circuit without the sensor itself having failed.
DIY PossibleEOC board sensor input circuit failure
The analog input circuit on the EOC board that reads the sensor resistance has failed, causing the board to read the sensor as open even when the sensor and wiring are intact. This is the least common cause and requires board replacement.
Requires ProfessionalSafe Checks You Can Do
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1
Test oven sensor resistance with a multimeter
Turn off the range at the circuit breaker. Remove the two screws securing the RTD sensor inside the oven cavity (upper rear wall) and pull the sensor out enough to reach the wiring connector behind it. Disconnect the connector and measure resistance across the two sensor leads. A good sensor reads 1,080–1,100 ohms at room temperature. An open circuit (no reading / OL) confirms the sensor has failed and must be replaced.
Also check the harness connector for backed-out or corroded pins before concluding the sensor is at fault. Push the connector back together firmly and re-test — a loose pin can mimic an open sensor.
Tools required -
2
Trace the sensor harness for visible damage
With range power off, follow the sensor wiring harness from the oven cavity sensor mount back through the rear wall and along the back panel to the EOC board. Look for pinched, melted, or broken insulation and for connectors that have separated. The harness often passes near the bake element terminals and broil element area, where radiant heat can degrade insulation over time.
A multimeter continuity test between each end of each harness wire is more reliable than visual inspection alone — insulation can look intact while the conductor inside has fractured at a tight bend.
Tools required
When to Call a Professional
Contact a qualified technician if:
- Sensor resistance is open circuit (infinite / OL) at room temperature
- Harness conductors test with good continuity but F3-E0 persists — indicating the EOC board sensor input has failed
- Sensor reads correctly by multimeter but the EOC board still sets F3-E0, confirming a board-level input failure
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