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Error code reference

Kenmore Range Error Code F3 E5

Lower sensor short or bottom sensor short (bottom oven sensor shorted).

Kenmore codesKenmore range codes

Lower sensor short or bottom sensor short (bottom oven sensor shorted).

First step from the service manual

Unplug range or disconnect power, open back panels and verify the temperature sensor is plugged in.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F3 E5 means on a Kenmore range

The F3 E5 error code on a Kenmore range indicates a short circuit condition in the lower or bottom oven temperature sensor circuit. The oven temperature sensor is a resistive probe, typically a negative temperature coefficient (NTC) thermistor, that the control board uses to monitor oven cavity temperature in real time. When the control board detects that the sensor's resistance has dropped below the expected minimum threshold, it interprets this as a shorted circuit and triggers the F3 E5 fault to prevent the oven from operating outside safe temperature parameters.

The bottom oven sensor is located inside the oven cavity, usually mounted to the rear wall, and connects to the control board via a wiring harness routed through the back of the range. A shorted sensor typically reads abnormally low resistance values compared to the normal operating range. The fault can originate at the sensor probe itself, at the wiring harness connector, or at any point along the circuit where insulation has broken down and allowed conductors to contact each other or a grounded surface.

Common causes include a physically damaged sensor probe, deteriorated wiring insulation from prolonged heat exposure, a connector that has come loose or corroded, or in some cases a failed control board that is misreading a healthy sensor. The first diagnostic step is to disconnect power, access the back panel, and confirm the sensor connector is fully seated before testing resistance values at the sensor or harness.

Source: manufacturer service documentation.

Common causes of F3 E5

  1. 01

    Disconnected or loose sensor connector

    Wiring / connection

    The wiring harness connector at the bottom oven sensor may have come unplugged or is not fully seated, causing an abnormal circuit reading. After disconnecting power, opening the back panel and firmly reseating the connector is the first step to rule this out.

  2. 02

    Failed bottom oven temperature sensor

    Part replacement

    The sensor probe itself may have developed an internal short, causing its resistance to drop below normal operating range. The sensor can be tested with a multimeter to check for abnormally low or zero resistance values.

  3. 03

    Damaged or shorted sensor wiring harness

    Part replacement

    Prolonged heat exposure inside the range can cause the insulation on the sensor wires to crack or melt, allowing conductors to contact each other or a metal surface. Visually inspect the harness along its full length for any signs of burned, pinched, or bare wiring.

  4. 04

    Corroded or burned sensor connector pins

    Part replacement

    Moisture or heat can corrode the connector pins between the sensor and the harness, creating resistance irregularities or short circuit paths. Inspect the connector terminals for discoloration, buildup, or visible damage.

  5. 05

    Faulty electronic control board

    Part replacement

    If the sensor and wiring test within normal specifications, the control board itself may be misinterpreting the sensor signal due to a component failure on the board. This is the least common cause and should only be considered after the sensor and harness have been ruled out.

See the test procedure for each cause

Frequently asked questions about F3 E5

What does F3 E5 mean on a Kenmore range?
F3 E5 on a Kenmore range means the control board has detected a short circuit in the bottom oven temperature sensor circuit. The sensor is a resistive probe that monitors oven temperature, and a short causes it to send an out-of-range signal to the board. The range will not operate normally until the fault is diagnosed and corrected. The issue can involve the sensor itself, its wiring harness, or the connector.
Can I fix the F3 E5 error myself?
Some steps are DIY-friendly, such as disconnecting power, opening the back panel, and reseating the sensor connector. If the connector is secure, testing the sensor with a multimeter for a short or zero resistance reading is a straightforward next step. Replacing the bottom oven sensor is a moderate repair that many technicians and experienced DIYers can perform. If the wiring harness or control board is at fault, the repair becomes more involved and may warrant professional service.
Is it safe to use my Kenmore range while the F3 E5 code is active?
It is not recommended to use the lower oven while F3 E5 is active. The error means the control board cannot accurately read the oven temperature, which removes a key safety and performance safeguard. Operating the oven without a functioning temperature sensor risks uncontrolled heating. Disconnect power and address the fault before resuming use.
Will resetting the Kenmore range clear the F3 E5 error code?
Unplugging the range or cutting power at the breaker for a few minutes may temporarily clear the error code. However, if the underlying fault in the sensor, connector, or wiring is still present, the F3 E5 code will return once the range is powered back on and the control board runs its diagnostics. A reset is useful for confirming whether the fault is intermittent, but it does not repair the root cause.
How much does it cost to repair the F3 E5 error on a Kenmore range?
Repair costs vary depending on which component is at fault. A replacement bottom oven temperature sensor typically costs in the range of $20 to $60 for the part alone. If a technician is needed, labor charges can add $75 to $150 or more depending on your location and the service provider. A control board replacement is the most expensive scenario, with parts and labor potentially ranging from $200 to $400 or higher.

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