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Kenmore Oven Error Code F4

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 11, 2026
Medium Severity 🔧 Easy DIY

Oven temperature sensor shorted

The most common cause of the F4 error on a Kenmore oven is shorted oven temperature sensor (~60% of cases); start with: test the sensor.

💰 DIY cost: $20–$50 👨‍🔧 Pro cost: $150–$280 Save $130+ by doing it yourself
Kenmore Oven error code F4 on the display panel
How the F4 code appears on a Kenmore oven display

What Does Error Code F4 Mean on a Kenmore Oven?

Oven temperature sensor shorted.

F4 fires when the electronic oven control reads the RTD temperature sensor circuit as shorted — resistance far below the roughly 1,000-ohm-at-room-temperature baseline. The board treats this as a physically impossible value and disables the heating elements to prevent uncontrolled temperatures. Unlike F3, which flags an open (infinite-resistance) sensor circuit, F4 indicates the opposite failure: a collapsed or grounded circuit, often from a degraded sensor or a lead shorting against cavity sheet metal.

Models affected: Kenmore 790 Series ranges and ovens; more broadly, electronic-control Kenmore ovens using an RTD-type temperature sensor
What owners report: Owners commonly report F4 appearing at power-up or partway into a bake or self-clean cycle, with the oven refusing to heat afterward. A pinched or heat-damaged harness rubbing the rear panel is a frequent false trigger that mimics a bad sensor, so many find that reseating or freeing the lead — or swapping the inexpensive sensor — clears it.

What Causes Error Code F4?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Shorted oven temperature sensor 60% of cases
  2. 2
    Pinched harness shorting to chassis 30% of cases
  3. 3
    Control board fault 10% of cases

How to Fix Kenmore Oven Error Code F4

🔧 Easy DIY Est. time: 10–20 min
Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Test the sensor

    Breaker off; near-zero ohms at the sensor means it's shorted — replace it.

    🔩 Kenmore oven temperature sensor ($20–$50)
    ⚠️ Disconnect power before testing.
  2. 2

    Check the harness

    Look for the sensor lead pinched against the cavity or rear panel sheet metal.

  3. 3

    Replace the control if needed

    With a good sensor and clean harness, replace the EOC.

    🔩 Kenmore electronic oven control ($120–$280)

How to Reset Error Code F4

Restore power after replacement; verify with a bake cycle.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Did this guide fix your appliance?

When to Call a Professional

If sensor and harness both check good, board diagnosis is a job for a tech.

Average professional repair cost for this issue: $150–$280

Related Error Codes

Same Code on Other Brands

Error code F4 appears on these other brands too. See every brand that shows F4 →

Find Replacement Parts

Use these links to find the exact replacement parts for your Kenmore Oven:

External links — ApplianceErrors.com is not affiliated with these retailers.

More Kenmore Oven Error Codes

Frequently Asked Questions

Can I keep using my Kenmore Oven when error F4 appears? +
You often can for a cycle or two, but the temperature-sensor issue behind F4 will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.
What most commonly causes F4 on a Kenmore Oven? +
Across reported Kenmore oven repairs, the most frequent is shorted oven temperature sensor (60% of cases), pinched harness shorting to chassis (30%), then control board fault (10%). Check them in that order before replacing any parts.
F4 keeps coming back after a reset — what should I check next? +
A reset only clears the stored F4 fault; if it returns, the temperature-sensor problem is still present. Move on to the physical checks — test the sensor, then check the harness — since the code will reappear until the root cause is resolved. This is a beginner-friendly job needing only basic hand tools.
How much does it cost to fix Kenmore Oven error F4? +
A DIY repair typically runs $20–$50 in parts, versus $150–$280 for a professional service call, so handling it yourself saves around $130. Expect the work to take about 10–20 minutes.
Which Kenmore Oven models show error F4? +
F4 is documented on Kenmore 790 Series ranges and ovens; more broadly, electronic-control Kenmore ovens using an RTD-type temperature sensor. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 11, 2026.