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Error code reference

GE Range Error Code F3 E5

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

GE codesGE range codes

Lower/bottom oven 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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  • Wiring diagram references and connector pinouts from the OEM service manual
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What F3 E5 means on a GE range

The F3 E5 error code on a GE range indicates that the lower or bottom oven temperature sensor has developed a short circuit condition. The oven temperature sensor is a resistive probe, typically a negative temperature coefficient (NTC) thermistor, that provides real-time temperature data to the oven control board. When the sensor shorts, its resistance drops abnormally low, causing the control board to read an impossibly high or erratic temperature signal. This triggers the F3 E5 fault and typically disables the lower oven to prevent overheating or runaway heating cycles.

The most common cause of a shorted sensor is physical damage to the sensor probe or its wiring harness. Over time, high heat cycles can degrade the insulation on the sensor leads, allowing bare wires to contact each other or the oven cavity wall. Grease buildup, oven cleaner residue, or direct contact with heating elements can also compromise the sensor or its connector. In some cases, the connector at the back of the range works loose and causes an intermittent short when the wires contact metal surfaces.

Diagnosing this fault begins with disconnecting power to the range and removing the back panels to inspect the sensor connection. A properly functioning oven temperature sensor typically reads around 1080 to 1100 ohms at room temperature. A shorted sensor will read near zero ohms or well below the normal range. If the wiring harness checks out but the sensor reads out of specification, the sensor itself requires replacement. If resistance reads correctly, the control board may be the source of the fault.

Source: manufacturer service documentation.

Common causes of F3 E5

  1. 01

    Failed or shorted temperature sensor

    Part replacement

    The sensor probe itself has internally shorted, causing resistance to drop well below the normal range of approximately 1080 to 1100 ohms at room temperature. This is the most frequent cause and requires replacing the lower oven temperature sensor.

  2. 02

    Damaged sensor wiring harness

    Part replacement

    Heat exposure or physical wear can crack or strip the insulation on the sensor wires, allowing them to contact each other or nearby metal and create a short. Inspect the full length of the wiring from the sensor to the control board connector for any visible damage.

  3. 03

    Loose or corroded sensor connector

    Wiring / connection

    The sensor connector at the back of the range can work loose, corrode, or allow wires to contact the metal chassis, producing a false short reading. Disconnecting power and reseating the connector firmly may resolve the fault if no other damage is present.

  4. 04

    Grease or oven cleaner contamination

    Wiring / connection

    Buildup of grease or chemical residue from oven cleaner on the sensor probe or connector can create conductive paths that mimic a short circuit. Cleaning the sensor area and connector contacts carefully may eliminate the fault.

  5. 05

    Faulty oven control board

    Part replacement

    If the sensor and all wiring test within normal resistance specifications, the control board itself may be misreading the sensor signal due to a failed input circuit. Control board replacement is a higher-cost repair and should only be considered after ruling out all sensor and wiring issues.

See the test procedure for each cause

Frequently asked questions about F3 E5

What does F3 E5 mean on a GE range?
F3 E5 indicates that the lower oven temperature sensor has been detected as shorted by the control board. A shorted sensor produces an abnormally low resistance reading, which signals an invalid temperature condition. The range disables the lower oven in response to prevent unsafe operation. The sensor, its wiring, or in rare cases the control board will need to be inspected and likely replaced.
Can I fix the F3 E5 error code myself?
Many homeowners and DIYers can address this fault by starting with the basics: disconnect power, remove the back panel, and check that the sensor connector is fully seated. If the connector looks fine, testing the sensor resistance with a multimeter and comparing it to the expected value around 1080 to 1100 ohms at room temperature will confirm whether the sensor needs replacement. Replacing the sensor is a straightforward repair on most GE ranges, involving removing a couple of screws and unplugging a connector.
Is it safe to use my GE range while F3 E5 is showing?
It is not recommended to use the lower oven while this fault code is active. The error indicates the control board cannot trust the temperature data from the sensor, which means the oven cannot regulate heat properly in that cavity. Continued use could result in the oven overheating or failing to heat at all. If your range has a separate upper oven and it is not affected, that section may still be usable while you address the lower oven fault.
Will resetting the range clear the F3 E5 error code?
Unplugging the range or tripping the circuit breaker for a few minutes may temporarily clear the display, but the code will return if the underlying sensor or wiring problem has not been corrected. A reset is useful as a first step to confirm whether the fault is intermittent or persistent, but it does not repair a shorted sensor or damaged wiring. A permanent fix requires inspecting and replacing the faulty component.
How much does it cost to repair a GE range F3 E5 error?
If the lower oven temperature sensor is the cause, the part typically costs between $20 and $60 depending on the specific GE model, and most repairs can be completed in under an hour. If a professional technician is needed, expect to pay an additional $75 to $150 or more in labor. If the control board turns out to be the faulty component, costs rise significantly, often ranging from $150 to $350 or higher for the part alone, making a professional diagnosis worthwhile before purchasing a board.

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