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Error code reference

Jenn-Air Range Error Code FAULT DETECTED

The oven has detected a fault during programming or during operation.

Jenn-Air codesJenn-Air range codes

The oven has detected a fault during programming or during operation.

First step from the service manual

Follow directions in the display: press Power to clear or press Enter to try again. If the fault reappears or does not clear, call an authorized servicer.

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

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What FAULT DETECTED means on a Jenn-Air range

The FAULT DETECTED error on a Jenn-Air range is a general fault indicator that activates when the oven's control board identifies an abnormal condition either during the programming sequence or while the unit is actively operating. This is a broad diagnostic flag rather than a component-specific code, meaning the control system has registered something outside of its expected operational parameters but is signaling the user to take action before escalating to a service call.

The fault can originate from a transient software glitch within the electronic control board, a communication error between the control board and a connected component, or an actual hardware issue such as a sensor reading out of range or a keypad input that failed to register correctly. Because this code appears during both programming and active operation, it can be triggered by anything from a momentary power fluctuation to a failed temperature sensor or a stuck relay on the control board.

The first step is always to follow the on-screen prompt: press Power to clear the fault and restart, or press Enter to attempt the operation again. If the fault clears and does not return, the cause was likely a transient error. If the fault reappears consistently under the same operating conditions, this points to a repeatable hardware or firmware issue that requires hands-on diagnosis by a qualified technician. Repeated or persistent faults should not be ignored, as they may indicate a component that is beginning to fail.

Source: manufacturer service documentation.

Common causes of FAULT DETECTED

  1. 01

    Transient Control Board Glitch

    Wiring / connection

    A momentary power fluctuation or software hiccup in the electronic control board can trigger this fault without any underlying hardware failure. Pressing Power to clear and retrying the operation will resolve it if this is the cause.

  2. 02

    Programming Input Error

    Wiring / connection

    If a button was pressed incorrectly or a programming sequence was interrupted mid-entry, the control board may register a fault. Clearing the error and re-entering the settings from the beginning typically resolves this.

  3. 03

    Temperature Sensor Fault

    Part replacement

    An oven temperature sensor that is reading out of its expected range can cause the control board to flag a fault during operation. A technician would need to test the sensor's resistance to confirm whether it has failed.

  4. 04

    Faulty Control Board

    Part replacement

    If the fault appears consistently across multiple functions or cannot be cleared, the electronic control board itself may have a failed relay, damaged component, or firmware issue that requires board replacement.

  5. 05

    Keypad or Touchpad Failure

    Part replacement

    A keypad with a shorted or stuck key can send incorrect signals to the control board, triggering a fault during programming. If specific buttons feel unresponsive or the fault appears immediately when pressing certain keys, the touchpad assembly may need replacement.

See the test procedure for each cause

Frequently asked questions about FAULT DETECTED

What does FAULT DETECTED mean on a Jenn-Air range?
FAULT DETECTED means the oven's control system has identified an abnormal condition either during programming or while the oven is running. It is a general fault signal rather than a code pointing to one specific component. The display will prompt you to press Power to clear the fault or press Enter to try the operation again. If the fault does not clear or returns repeatedly, a service technician should inspect the unit.
Will resetting my Jenn-Air range clear the FAULT DETECTED error?
Pressing Power as directed on the display will often clear the fault if it was caused by a transient glitch or an interrupted programming sequence. If the fault reappears after clearing, the underlying cause has not been resolved and resetting alone will not fix it. In that case, professional diagnosis is recommended.
Is it safe to use my Jenn-Air range when FAULT DETECTED is showing?
If the fault clears after pressing Power and the oven operates normally afterward, it is generally safe to continue using it while monitoring for recurrence. However, if the fault appears repeatedly during operation or the oven is not heating correctly, you should stop using it and contact an authorized servicer. Continuing to operate an appliance with a persistent control fault can pose safety risks.
How much does it cost to repair a Jenn-Air range showing FAULT DETECTED?
Repair costs depend entirely on the root cause identified during diagnosis. If the fault is traced to a failed temperature sensor, parts and labor typically range from around 100 to 250 dollars. A control board replacement can run from 200 to 450 dollars or more depending on the specific model. A service call for diagnosis alone usually costs between 75 and 150 dollars before any parts.
Can I fix FAULT DETECTED on my Jenn-Air range myself?
The initial step of pressing Power to clear or pressing Enter to retry is something any user can do without tools or technical knowledge. If those steps resolve the issue, no further action is needed. However, if the fault persists, diagnosing the root cause requires testing components like the temperature sensor and control board, which involves working near line voltage and is best handled by a qualified technician.

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