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Error code reference

Jenn-Air Range Error Code 1c2c

Keyboard disconnected from the control.

Jenn-Air codesJenn-Air range codes

Keyboard disconnected from the control.

First step from the service manual

Reseat the membrane keyboard connector to the control. If this does not work, replace membrane switch.

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

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What 1c2c means on a Jenn-Air range

The 1c2c error code on a Jenn-Air range indicates that the control board has lost communication with the membrane keyboard. The membrane keyboard is the touch pad panel used to input cooking functions, temperatures, and timer settings. The control board continuously monitors the signal line from the keyboard, and when that connection is interrupted or absent, it triggers this fault code to alert the technician that input communication has failed.

The most common physical cause is a loose or partially seated ribbon connector between the membrane switch and the control board. These flat ribbon connectors can work themselves loose over time due to vibration, thermal cycling, or accidental stress during prior service. A damaged or failed membrane switch itself is the next most likely cause, where internal breaks in the conductive traces within the keypad prevent a reliable signal from reaching the control board.

Diagnosis should begin by inspecting and reseating the membrane keyboard connector at the control board. Ensure the ribbon is fully inserted and the locking tab, if present, is secured. If reseating the connector does not clear the fault, the membrane switch assembly should be replaced. In rare cases, the control board itself may have a damaged connector port or failed input circuitry, which would require board-level evaluation or replacement.

Source: manufacturer service documentation.

Common causes of 1c2c

  1. 01

    Loose membrane keyboard ribbon connector

    Wiring / connection

    The flat ribbon connector linking the membrane keyboard to the control board may have come loose or shifted out of its socket. Reseating the connector is the recommended first step and often resolves the fault without any parts replacement.

  2. 02

    Failed membrane switch

    Part replacement

    If the membrane switch itself has developed internal breaks in its conductive traces or has failed at the connector interface, it will no longer send a recognizable signal to the control board. Replacing the membrane switch assembly is required in this case.

  3. 03

    Damaged ribbon cable

    Part replacement

    The ribbon cable connecting the keyboard to the control board may be torn, kinked, or have worn contact pads. Inspect the cable closely for any visible damage along its length and at both ends.

  4. 04

    Damaged control board connector port

    Part replacement

    If the socket on the control board that accepts the keyboard ribbon connector is cracked, corroded, or has broken retaining tabs, the connection will be unreliable. This would require control board replacement.

See the test procedure for each cause

Frequently asked questions about 1c2c

What does 1c2c mean on a Jenn-Air range?
The 1c2c error code means the control board has detected that the membrane keyboard is disconnected or not communicating. This fault points to a break in the signal path between the touch pad panel and the main control board. It can be caused by a loose connector, a damaged ribbon cable, or a failed membrane switch.
Can I fix the 1c2c error myself, or do I need a technician?
The first diagnostic step, reseating the membrane keyboard ribbon connector, is something a mechanically inclined homeowner can attempt after unplugging the range. However, accessing the connector typically requires removing the control panel, and if the membrane switch needs replacement, some comfort with appliance disassembly is helpful. If you are unsure about working inside the appliance, a qualified technician is the safer option.
Will resetting the range clear the 1c2c error code?
A reset by cutting power to the range may temporarily clear the display, but the 1c2c code will return if the underlying connection issue is not corrected. The fault is tied to an active hardware problem, so the code will reappear as soon as the control board re-checks the keyboard communication line. A proper repair requires addressing the physical connector or replacing the membrane switch.
Is it safe to keep using my Jenn-Air range while the 1c2c code is showing?
Because the 1c2c fault indicates the keyboard is not communicating with the control board, the range may not accept input commands reliably or at all. Attempting to operate the range in this condition is not recommended, as you may not be able to set or cancel cooking functions properly. The appliance should be repaired before returning to regular use.
How much does it cost to repair the 1c2c error on a Jenn-Air range?
If the issue is simply a loose connector that can be reseated, the cost may be limited to a service call fee, typically in the range of $75 to $150. If a membrane switch replacement is needed, parts can range from $50 to $200 or more depending on the specific model, plus labor. Control board replacement, if required, would add significantly to the total cost.

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