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Error code reference

KitchenAid Range Error Code Err

An invalid control pad was pressed on the electronic oven control.

KitchenAid codesKitchenAid range codes

An invalid control pad was pressed on the electronic oven control.

First step from the service manual

Press OFF and retry your entry.

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

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What Err means on a KitchenAid range

The "Err" code on a KitchenAid range electronic oven control (EOC) appears when the control board receives input from a keypad position that is not recognized as a valid function. The EOC continuously scans the membrane keypad matrix for valid button presses. When a signal is received that does not correspond to any programmed function in the control's firmware, it responds by displaying this error rather than attempting to execute an undefined command.

The most common trigger is accidental or simultaneous multi-key contact on the membrane touchpad. This can happen when a user presses two adjacent pads at once, when a spill causes current to bridge across pad contacts, or when a worn or delaminating membrane creates unintended electrical contact. The control interprets this combined or corrupted input as an invalid pad press and halts to display Err.

In some cases, a failing membrane keypad with degraded conductive traces can intermittently send signal combinations the control does not recognize, triggering the code without any obvious user input. A damaged or partially shorted ribbon cable connecting the keypad to the EOC board can produce the same effect. Because the error is input-driven rather than sensor-driven, it does not indicate a failed heating element, temperature sensor, or safety component.

Source: manufacturer service documentation.

Common causes of Err

  1. 01

    Simultaneous or accidental multi-key press

    Wiring / connection

    Pressing two adjacent control pad buttons at the same time sends an unrecognized input combination to the EOC. This is the most frequent cause and is resolved immediately by pressing OFF and re-entering the command.

  2. 02

    Spill or moisture on the keypad surface

    Wiring / connection

    Liquid on the membrane keypad can bridge conductive areas and simulate invalid key combinations. Cleaning the surface thoroughly and allowing it to dry fully will often resolve this.

  3. 03

    Worn or delaminating membrane keypad

    Part replacement

    Over time, the conductive traces inside the membrane keypad can degrade or separate, causing random or invalid signals to be sent to the EOC. If the error recurs frequently without obvious user error, keypad replacement is likely needed.

  4. 04

    Damaged or loose ribbon cable

    Part replacement

    The ribbon cable connecting the membrane keypad to the EOC board can become partially unseated or develop damaged traces, sending corrupted input signals. Inspect the connector for proper seating and visible damage.

  5. 05

    Faulty electronic oven control board

    Part replacement

    In rare cases, the EOC board itself misinterprets valid keypad signals due to internal component failure. This is typically diagnosed only after confirming the keypad and ribbon cable are functioning correctly.

See the test procedure for each cause

Frequently asked questions about Err

What does Err mean on a KitchenAid range?
Err on a KitchenAid range means the electronic oven control received input from a keypad position it does not recognize as a valid function. This can result from pressing two buttons simultaneously, a contaminated touchpad surface, or a worn membrane keypad. The control displays this code to prevent executing an undefined command. Pressing OFF and retrying your entry is the recommended first response.
Will pressing OFF clear the Err code on my KitchenAid range?
Yes, pressing OFF is the first recommended step and will clear the Err display in most cases. If the error was caused by an accidental or simultaneous key press, canceling and re-entering your selection should resolve it completely. If the code returns repeatedly without an obvious input mistake, a failing keypad or connection issue may be the underlying cause.
Is the Err code on a KitchenAid range a safety concern?
The Err code itself does not indicate a safety hazard. It does not involve a temperature sensor failure, a runaway heating condition, or a gas control fault. It simply means the control panel received an unrecognized input and halted to avoid acting on an undefined command. The range can typically be used normally once the error is cleared by pressing OFF.
How much does it cost to fix the Err code on a KitchenAid range if a part is needed?
If a simple keypad cleaning or re-entry resolves the issue, there is no parts cost. Membrane keypad replacement parts for KitchenAid ranges typically run in the range of $50 to $150 depending on the specific model. An electronic oven control board, if that component is ultimately at fault, generally costs between $100 and $300 or more for parts alone, with additional labor charges if a technician is hired.
Why does my KitchenAid range keep showing Err even when I haven't touched any buttons?
Recurring Err codes without deliberate user input typically point to a hardware problem rather than a usage issue. A degraded membrane keypad with worn conductive traces, a loose or damaged ribbon cable between the keypad and control board, or residual moisture under the keypad surface can all generate intermittent invalid signals. Inspecting the keypad for visible wear or contamination, and checking the ribbon cable connection, are the next diagnostic steps when the error persists on its own.

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