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Error code reference

Jenn-Air Oven Error Code F8

Shorted meat probe alarm.

Jenn-Air codesJenn-Air oven codes
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What the F8 error code actually means

The F8 error means your oven's control board is getting an abnormal reading from the meat probe (the temperature sensor you insert into food while cooking). The oven is seeing a signal that suggests an impossibly high temperature before cooking has even started, which usually points to a problem with the probe itself, the port it plugs into, or the wiring connecting them. Try unplugging the meat probe completely and see if the error clears, since a faulty or damaged probe is often the cause.

Diagnostic procedure

The full F8 procedure

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1
First diagnostic step
Check probe jack or harness to probe jack. Check if probe is sensing temp above 250°F.
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Most common causes of F8

Ranked by how often they cause this code
  1. 1Meat probe plugged in or physically damaged
  2. 2Damaged or corroded probe jack
  3. 3Faulty wiring harness to the probe jack
  4. 4Failed control board

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Questions people ask about F8

What does the F8 error code mean on a Jenn-Air oven?
F8 on a Jenn-Air oven means the control board has detected a shorted meat probe circuit. The board is receiving a signal from the probe jack or its wiring that indicates a temperature above 250°F, which triggers the alarm. This can be caused by a damaged meat probe, a faulty probe jack, or a shorted wiring harness leading to that jack.
Can I still use my Jenn-Air oven when F8 is displayed?
In many cases the oven will still operate for standard baking and broiling functions, but you should not attempt to use the meat probe feature while the F8 code is active. The underlying short in the probe circuit means the oven cannot accurately read probe temperatures, and the fault should be resolved before relying on probe-based cooking. If the code is causing the oven to lock up entirely, the probe or jack issue needs to be addressed before further use.
Why does my Jenn-Air oven show F8 even when no probe is plugged in?
If F8 appears without a meat probe inserted, the short is occurring inside the probe jack itself or in the wiring harness that runs from the jack to the control board. Inspect the jack for visibly bent contacts, corrosion, or food debris that could be bridging the terminals. If the jack looks intact, the harness should be tested for a short to ground or between conductors. Either the jack or the harness will need to be replaced to resolve the code.
How do I fix the F8 error code on my Jenn-Air oven?
Start by unplugging the meat probe from the jack inside the oven cavity, then clear the code and see if it returns. If the code clears, replace the meat probe. If the code returns without any probe inserted, inspect the probe jack for corrosion or damage and check the wiring harness that runs from the jack to the control board. A damaged jack or harness will need to be replaced, and a technician can test the harness for continuity to confirm the fault location.
How much does it cost to fix an F8 error on a Jenn-Air oven?
A replacement meat probe is typically the least expensive fix, usually between $20 and $60 depending on the model. A replacement probe jack or wiring harness will cost more in parts, generally $30 to $100, plus labor if a technician performs the repair. If the control board is the cause, that is the most expensive scenario, with board costs ranging from $150 to $400 or more. Diagnosing the fault yourself by removing the probe first can help you avoid unnecessary service costs.

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