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Error code reference

KitchenAid Range Error Code F3

Shorted temperature sensor

KitchenAid codesKitchenAid range codes

Shorted temperature sensor — sounds alarm and inhibits cook modes.

First step from the service manual

Verify the harness connection at the sensor and the 8-pin connector on the electronic module. Replace the sensor if connections are good.

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

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What F3 means on a KitchenAid range

The F3 error code on a KitchenAid range indicates a shorted oven temperature sensor, also called an RTD (resistance temperature detector). When the electronic control module detects that the sensor circuit resistance has dropped below the expected range, it interprets this as a short condition. In response, the control sounds an audible alarm and disables all cook modes to prevent the oven from operating without reliable temperature feedback, which could otherwise result in uncontrolled heating.

The oven temperature sensor is a probe mounted inside the oven cavity that changes resistance in proportion to temperature. Under normal operating conditions, the sensor presents a specific resistance value to the control board. A shorted sensor, or a short in the wiring harness connecting it, causes the resistance to read abnormally low, triggering the F3 fault. The fault is distinct from an open-circuit failure, which would indicate a broken sensor or wire rather than a short.

Diagnosis begins at the wiring harness connection at the sensor itself and at the 8-pin connector on the electronic control module. Loose or corroded connectors can sometimes mimic a short condition and should be reseated and inspected before condemning the sensor. If the connections are secure and the fault persists, the temperature sensor itself is the most likely failed component and should be replaced. In less common cases, the wiring harness between the sensor and the control board may have chafed insulation causing a short to ground.

Source: manufacturer service documentation.

Common causes of F3

  1. 01

    Failed oven temperature sensor

    Part replacement

    The RTD temperature sensor probe inside the oven cavity has internally shorted, causing abnormally low resistance readings. If connections check out and the fault remains, the sensor itself is the most likely cause and should be replaced.

  2. 02

    Loose or corroded harness connection at the sensor

    Wiring / connection

    A poor connection at the sensor's wiring harness plug can create an intermittent or false short signal. Disconnecting, inspecting, and firmly reseating the connector is the first step before replacing any parts.

  3. 03

    Loose or faulty 8-pin connector at the electronic control module

    Wiring / connection

    The 8-pin connector on the electronic control module carries the sensor signal, and a loose or damaged connection here can produce the same F3 fault as a defective sensor. Inspect this connector for bent pins, corrosion, or incomplete seating.

  4. 04

    Chafed or shorted wiring harness

    Part replacement

    The wiring between the temperature sensor and the control board can develop insulation damage from heat exposure or contact with sharp metal edges, creating a short to ground. Visually trace the harness for any damaged insulation or bare wire.

  5. 05

    Failed electronic control module

    Part replacement

    In rare cases, the electronic control module itself may misread the sensor circuit due to an internal fault on the board. This is typically only considered after the sensor and all wiring connections have been confirmed good.

See the test procedure for each cause

Frequently asked questions about F3

What does F3 mean on a KitchenAid range?
F3 on a KitchenAid range indicates that the electronic control module has detected a shorted oven temperature sensor circuit. The control sounds an alarm and disables all cook modes as a safety precaution. The fault points to either the temperature sensor probe itself, the wiring harness, or the connector at the control board. Diagnosis starts by checking all harness connections before replacing the sensor.
Can I fix the F3 error code myself?
Many technicians and experienced DIYers can resolve an F3 code by first reseating the harness connector at the oven temperature sensor and the 8-pin connector at the control module, since a loose connection is sometimes the entire cause. If that does not clear the fault, replacing the oven temperature sensor is a straightforward repair that typically involves removing a couple of screws inside the oven cavity and unplugging the old sensor. Always disconnect power to the range before working on any components.
Is it safe to use my KitchenAid range while F3 is displayed?
No, you should not attempt to use the oven while F3 is active. The control has intentionally inhibited all cook modes because it cannot accurately monitor oven temperature, which creates a risk of uncontrolled heating. The range should remain out of service until the sensor issue is diagnosed and repaired.
Will resetting the range clear the F3 error code?
Disconnecting power to the range for a few minutes may temporarily clear the F3 display, but the fault will return as soon as the control re-evaluates the sensor circuit if the underlying problem has not been fixed. A reset is useful for confirming whether the fault is intermittent, but it does not substitute for inspecting and correcting the shorted sensor or wiring.
How much does it cost to repair an F3 error on a KitchenAid range?
If the fix is simply reseating a loose connector, there is no parts cost involved. Replacing the oven temperature sensor is generally an affordable repair, with sensor parts typically ranging from $20 to $75 depending on the model. If a technician is performing the repair, expect total costs including labor to fall in the range of $100 to $250. Control board replacement, if ultimately required, is more expensive and typically ranges from $200 to $400 or more.

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