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Error code reference

Jenn-Air Oven Error Code F2

Over temperature sensed; over 620°F sensed by control in time of day mode or bake mode, or over 950°F sensed…

Jenn-Air codesJenn-Air oven codes

Over temperature sensed; over 620°F sensed by control in time of day mode or bake mode, or over 950°F sensed in clean mode.

First step from the service manual

Ohm sensor. If checks ok, change power relay board. See chart for sensor value.

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

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What F2 means on a Jenn-Air oven

The F2 error on a Jenn-Air oven indicates the control board has detected an over-temperature condition inside the oven cavity. The control reads temperature data from the oven temperature sensor (RTD probe) and triggers F2 when the sensed temperature exceeds the safe operating threshold, typically above 590°F on self-clean models or around 590°F during normal bake. The first diagnostic step is an ohm test on the sensor itself. A properly functioning oven sensor reads approximately 1080 ohms at room temperature; readings significantly outside this range point to a failed sensor. If the sensor tests within spec, the control board is misreading the input signal and needs replacement.

For homeowners, this code means your oven's safety system detected temperatures higher than it should ever reach, or a component is telling the board that temperatures are too high even when they may not be. Either way, the oven shuts down to prevent damage or a fire hazard. The two components involved are the oven temperature sensor and the electronic control board. In most cases, the sensor is the culprit and is a relatively affordable fix. Replacing the control board costs more but is still a manageable repair.

Source: manufacturer service documentation.

Common causes of F2

  1. 01

    Failed oven temperature sensor (RTD probe)

    Part replacement

    The sensor can fail in a way that sends an artificially high resistance or voltage signal to the control board, causing the board to interpret the oven as over-temperature even when it is not. This is the most common cause of F2 and is confirmed when the sensor ohms out of the 1080-ohm spec at room temperature.

  2. 02

    Faulty electronic control board

    Part replacement

    If the oven sensor tests within normal resistance range, the control board itself is misreading or misprocessing the sensor signal and incorrectly triggering F2. A failed input circuit on the board can generate phantom over-temperature readings.

  3. 03

    Damaged or shorted sensor wiring harness

    Part replacement

    Wiring between the oven sensor and the control board can burn, chafe, or short against the oven cavity, sending corrupted resistance readings to the control. This can produce erratic or falsely high temperature signals that trigger F2 even with a good sensor and board.

  4. 04

    Actual runaway oven temperature (failed relay on control board)

    Part replacement

    If the bake or broil relay on the control board sticks closed, the heating element stays on continuously and the oven genuinely overheats, triggering F2 as a legitimate safety response. In this scenario the board requires replacement and the element should also be inspected for damage.

See the test procedure for each cause

Frequently asked questions about F2

What does F2 mean on a Jenn-Air oven?
F2 on a Jenn-Air oven means the electronic control board has detected an over-temperature condition. The control monitors the oven through a temperature sensor (RTD probe) and shuts the oven down when the sensed temperature exceeds its programmed safety limit. The cause is usually a failed temperature sensor, though a faulty control board or wiring issue can also produce this code.
Is it safe to use my Jenn-Air oven when it shows an F2 error?
No, you should not use the oven while F2 is active. The code indicates either a genuine over-temperature condition or a sensor failure that prevents the control from accurately monitoring oven temperature. Operating the oven without reliable temperature control creates a risk of overheating, food burning, or damage to the oven cavity and components. Diagnose and repair the fault before using the oven again.
How do I fix F2 on a Jenn-Air oven?
Start by unplugging the oven and ohm-testing the oven temperature sensor. Disconnect the sensor leads and measure resistance with a multimeter; the reading should be close to 1080 ohms at room temperature. If the sensor reads open, shorted, or significantly out of range, replace the sensor. If the sensor tests good, inspect the wiring harness for damage, then replace the electronic control board if wiring is intact.
How much does it cost to fix an F2 error on a Jenn-Air oven?
An oven temperature sensor for a Jenn-Air typically costs $20 to $60 for the part, and replacing it is a beginner-level DIY repair requiring only a screwdriver. If the control board is the cause, the board itself usually runs $150 to $350 depending on the model, with professional labor adding another $100 to $200. Diagnosing the sensor first with an ohm test is the correct sequence since sensors fail far more often than control boards.
Can a bad oven sensor cause F2 on a Jenn-Air?
Yes, a faulty oven temperature sensor is the most common cause of F2. When the sensor fails, it can send a resistance value to the control board that corresponds to an extremely high temperature, causing the board to trigger F2 even though the oven cavity is at normal or ambient temperature. Testing the sensor with a multimeter set to ohms is the first step in diagnosing this code.

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