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Error code reference

Kenmore Oven Error Code F30

Open RTD sensor probe or wiring problem

Kenmore codesKenmore oven codes

Open RTD sensor probe or wiring problem. EOC may initially display an F10, thinking a runaway condition exists. Displayed when oven is in active mode or an attempt to enter an active mode is made.

First step from the service manual

Check wiring in probe circuit for possible open condition. Check RTD resistance at room temperature (compare to probe resistance chart). If resistance does not match the chart, replace the RTD sensor probe. Let the oven cool down and restart the function. If the problem persists, replace the analog control board.

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

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What F30 means on a Kenmore oven

The F30 error code on a Kenmore oven indicates an open circuit in the RTD (Resistance Temperature Detector) sensor probe circuit. The RTD sensor is a temperature-sensing resistor installed inside the oven cavity that continuously reports oven temperature to the electronic oven control (EOC) board by varying its electrical resistance in proportion to temperature. When the EOC cannot read a valid resistance signal from the RTD, it interprets the missing signal as an open circuit and triggers F30. Notably, the control may briefly display F10 first, because an absent sensor signal can initially appear to the board as a runaway temperature condition before it resolves the fault as an open circuit.

The F30 code will only appear when the oven is in an active mode, such as bake, broil, or self-clean, or when the user attempts to enter one of those modes. This distinguishes it from faults detected during idle states. The root cause is either a break in the wiring between the RTD probe and the EOC board, a failed RTD probe with resistance that has drifted outside acceptable values, or a faulty analog control board that can no longer correctly read the probe signal.

Diagnosis begins with a visual and electrical inspection of the wiring harness in the RTD circuit, looking for broken wires, burnt connectors, or loose terminals. If the wiring checks out, the RTD probe resistance should be measured at room temperature and compared against the probe resistance chart for that specific probe. A properly functioning RTD will show a resistance value consistent with the chart at ambient temperature. If resistance does not match, the probe requires replacement. If the probe and wiring both test correctly, the analog control board is the likely failed component.

Source: manufacturer service documentation.

Common causes of F30

  1. 01

    Broken or disconnected RTD probe wiring

    Wiring / connection

    A break, burn, or loose connection in the wiring harness between the RTD sensor and the control board creates an open circuit. Inspect the full length of the wiring for visible damage, melted insulation, or disconnected terminals.

  2. 02

    Failed RTD sensor probe

    Part replacement

    The RTD probe itself can fail internally, causing its resistance to fall outside the values shown on the probe resistance chart. Measure the probe resistance at room temperature and compare it to the chart; a mismatch confirms the probe needs replacement.

  3. 03

    Burnt or corroded connector at the probe or board

    Wiring / connection

    High oven temperatures can degrade connector terminals at either the probe end or the board end, increasing resistance to the point of an effective open circuit. Check both connectors for discoloration, corrosion, or melted plastic.

  4. 04

    Faulty analog control board

    Part replacement

    If the RTD probe resistance matches the chart and the wiring is intact, the analog control board may have lost the ability to correctly read the probe signal. Replacing the board is the final diagnostic step when all other components test correctly.

See the test procedure for each cause

Frequently asked questions about F30

What does F30 mean on a Kenmore oven?
F30 indicates an open circuit in the RTD temperature sensor probe circuit. The oven's electronic control board is not receiving a valid resistance signal from the probe, which prevents it from monitoring oven temperature. The cause is typically a broken wire, a failed RTD probe, or in less common cases, a faulty control board. The code appears only when the oven is in or attempting to enter an active cooking mode.
Can I fix F30 on my Kenmore oven myself?
Many DIYers can resolve F30 by inspecting the RTD probe wiring for breaks or loose connectors, and by testing the probe resistance with a multimeter. If the resistance does not match the probe resistance chart at room temperature, replacing the RTD sensor probe is a straightforward repair that typically requires only a screwdriver. If the wiring and probe both test correctly, replacing the analog control board is more involved and may warrant professional service.
Is it safe to use my Kenmore oven with an F30 error?
No, you should not attempt to use the oven while F30 is active. The oven's control board cannot read temperature without a functioning RTD circuit, meaning it has no way to regulate or limit heat. Continuing to operate the oven in this condition could create an uncontrolled heating situation. Resolve the fault before resuming normal use.
Will resetting the oven clear the F30 error code?
A reset, such as cutting power at the breaker and restoring it, may temporarily clear the display, but the F30 code will return as soon as the oven attempts to enter an active mode if the underlying fault has not been corrected. The wiring, RTD probe, and control board must be diagnosed and the defective component repaired or replaced for the code to clear permanently.
How much does it cost to repair a Kenmore oven F30 error?
Repair cost depends on which component has failed. An RTD sensor probe is generally an inexpensive part, with DIY repair costs typically ranging from $15 to $50 for the part alone. Professional labor to diagnose and replace the probe can bring the total to $100 to $200. If the analog control board requires replacement, parts costs range from roughly $100 to $300 or more depending on the model, with professional repair potentially reaching $250 to $500 total.

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