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Error code reference

Kenmore Range Error Code F3

Oven probe problem

Kenmore codesKenmore range codes

Oven probe problem: open or shorted RTD sensor probe/wiring, abusive operation causing safety thermostat to open, or cooling fan stalled.

First step from the service manual

Check wiring in probe circuit for open or short condition. Check RTD resistance at room temperature and compare to probe resistance chart; replace RTD sensor probe if resistance does not match.

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 Kenmore range

The F3 error code on a Kenmore range indicates the electronic oven control (EOC) has detected a fault condition. This board continuously monitors its own internal circuits and connected sensors. When the EOC registers a reading or signal that falls outside acceptable parameters, it triggers F3 and halts operation to prevent potential damage or unsafe conditions. The fault may originate within the control board itself or in a component the board is monitoring.

For homeowners, F3 means the oven's main control board has noticed something is wrong with how the oven is operating or how its circuits are responding. Think of the electronic oven control as the brain of the oven. When it sees something it does not recognize or cannot correct on its own, it stops and displays F3 to alert you. The oven may stop heating or refuse to start.

In many cases, the fault is intermittent and a power reset clears it without further issues. If the code returns after resetting and reprogramming the oven, the fault is persistent and the electronic oven control or an associated sensor or wiring connection will need to be inspected and likely replaced.

Source: manufacturer service documentation.

Common causes of F3

  1. 01

    Electronic oven control board failure

    Part replacement

    The EOC itself can develop internal component failures, including failed relays or damaged circuitry, that cause it to report a fault condition. When the board fails internally, the F3 code will return immediately or shortly after each reset.

  2. 02

    Faulty oven temperature sensor (RTD probe)

    Part replacement

    The electronic oven control monitors the oven temperature sensor to verify resistance readings fall within a normal range. A failed or shorted temperature sensor can send an out-of-range signal to the EOC, triggering F3.

  3. 03

    Damaged or loose wiring harness connections

    Wiring / connection

    Wiring between the electronic oven control and connected components such as the temperature sensor can develop loose pins, corrosion, or heat damage. Poor connections send erratic signals to the EOC and can cause intermittent F3 faults.

  4. 04

    Transient power surge or software glitch

    Wiring / connection

    A brief power fluctuation or a one-time internal software error in the EOC can cause F3 to appear without any underlying hardware failure. Pressing CLEAR and reprogramming the oven resolves these cases permanently.

See the test procedure for each cause

Frequently asked questions about F3

What does the F3 error code mean on a Kenmore range?
F3 means the electronic oven control has detected a fault condition. The control board monitors its own circuits and connected components, and when it receives a signal it cannot accept, it displays F3 and stops normal operation. The fault could be in the control board itself, the oven temperature sensor, or the wiring between them.
How do I fix F3 on a Kenmore range?
Start by pressing the CLEAR pad to stop the beeping and clear the display, then try programming the oven again. If F3 does not return, the fault was likely a temporary glitch. If F3 comes back, record the code and contact a qualified service technician. A technician will check the oven temperature sensor resistance and inspect the wiring harness before concluding the electronic oven control board needs replacement.
Is it safe to use my Kenmore range with the F3 error code active?
You should not attempt to use the oven while F3 is displayed. The electronic oven control has detected a fault and may have disabled heating as a safety measure. Using the oven in this state could result in no heat, uncontrolled heat, or further damage to components. The cooktop burners on a gas range may still function independently, but confirm this carefully and avoid the oven until the fault is diagnosed.
Will clearing the F3 code on my Kenmore range fix the problem?
Pressing CLEAR resolves the code if the fault was caused by a transient power event or a one-time software error in the electronic oven control. If an underlying hardware problem exists, such as a failing temperature sensor or damaged control board, F3 will return after you attempt to use the oven again. Recurring F3 codes after clearing require hands-on diagnosis.
How much does it cost to fix F3 on a Kenmore range?
Cost depends on the failed component. An oven temperature sensor is a relatively inexpensive part, typically ranging from $20 to $60, and is a manageable DIY repair for someone comfortable with basic appliance work. An electronic oven control board is more expensive, usually $100 to $250 or more depending on the model, plus labor if you use a technician. A service call to diagnose and repair the fault generally runs $100 to $200 in labor alone, separate from parts cost.

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