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Error code reference

Jenn-Air Range Error Code 1c1c

Shorted key detected on the keyboard.

Jenn-Air codesJenn-Air range codes

Shorted key detected on the keyboard.

First step from the service manual

Check membrane keyboard connection; reseat connector or 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 1c1c means on a Jenn-Air range

The 1c1c error code on a Jenn-Air range indicates that the control board has detected a shorted key condition on the membrane keyboard. This means one or more of the touch pad keys is registering as continuously pressed, even when no input is being made. The membrane keyboard is a flat, flexible circuit that translates physical key presses into electrical signals sent to the main control board. When a key shorts internally, it sends a constant low-resistance signal to the control board, which interprets this as a stuck or continuously activated key.

The most common root cause is physical damage or deterioration of the membrane switch itself. Over time, heat exposure, moisture intrusion, or mechanical wear can cause the conductive layers inside the membrane to make unintended contact, producing a persistent short. Spills that seep beneath the control panel surface are a frequent trigger, as even small amounts of liquid can bridge the conductive traces and simulate a keypress.

The diagnostic starting point is the physical connection between the membrane keyboard ribbon cable and the control board connector. A loose, misaligned, or corroded connector can produce false short signals without any fault in the membrane itself. Reseating the ribbon cable connector is the first step and may resolve the code without replacing any parts. If reseating does not clear the fault, the membrane switch assembly will require replacement, and in some cases the control board may also need evaluation if it has been damaged by a sustained short condition.

Source: manufacturer service documentation.

Common causes of 1c1c

  1. 01

    Worn or damaged membrane switch

    Part replacement

    The flexible conductive layers inside the membrane keyboard can degrade over time, causing two layers to make permanent contact and simulate a shorted key. This is the most frequent cause and typically requires membrane replacement.

  2. 02

    Liquid or moisture intrusion

    Wiring / connection

    Spills or steam that seep beneath the control panel surface can bridge the conductive traces on the membrane, triggering a false short signal. Inspect the membrane surface and connector area for visible moisture or residue.

  3. 03

    Loose or improperly seated ribbon cable connector

    Wiring / connection

    If the ribbon cable connecting the membrane keyboard to the control board is partially dislodged, it can cause erratic or shorted key signals. Reseating the connector firmly and evenly may clear the fault without any part replacement.

  4. 04

    Corroded ribbon cable or connector pins

    Part replacement

    Corrosion on the ribbon cable contacts or the control board connector can create low-resistance pathways that mimic a shorted key. Inspect the connector and cable end for discoloration, oxidation, or pitting.

  5. 05

    Control board fault

    Part replacement

    In some cases, the control board's key-scanning circuit may develop an internal fault that produces a false 1c1c code even when the membrane keyboard is in good condition. This is the least common cause and should be considered only after the membrane and connections have been ruled out.

See the test procedure for each cause

Frequently asked questions about 1c1c

What does 1c1c mean on a Jenn-Air range?
The 1c1c code means the control board has detected a shorted key on the membrane keyboard, which is the touch pad panel used to operate the range. The board is reading one or more keys as continuously pressed when they are not. This is typically caused by a faulty membrane switch, moisture intrusion, or a loose ribbon cable connection. The range will display this code until the underlying keyboard issue is resolved.
Can I fix the 1c1c error on my Jenn-Air range myself?
A knowledgeable DIYer can attempt the first diagnostic step, which involves locating the membrane keyboard ribbon cable connector on the control board and reseating it firmly. If the connector is secure and the code persists, the membrane switch assembly itself will likely need to be replaced. Replacing the membrane switch is a moderate-difficulty repair that involves disassembling the control panel, disconnecting the ribbon cable, and installing the new membrane. If you are not comfortable working inside the control panel, a qualified appliance technician should perform the repair.
Is it safe to use my Jenn-Air range while the 1c1c code is displayed?
A shorted key condition means the control board is receiving unintended input signals, which can interfere with normal range operation and make the controls unpredictable. It is not advisable to operate the range while this fault is active. Disconnect the range from power until the keyboard issue has been diagnosed and corrected.
Will resetting the range clear the 1c1c error code?
Power cycling the range by unplugging it or switching off the circuit breaker for several minutes may temporarily clear the 1c1c code, but if the underlying membrane keyboard fault is still present, the code will return. A reset alone does not repair a shorted key condition. The membrane switch or its connection must be inspected and corrected for the code to clear permanently.
How much does it cost to repair a 1c1c error on a Jenn-Air range?
Repair costs vary depending on which component needs to be replaced. A membrane switch assembly typically costs in the range of $50 to $150 for the part alone. If a control board replacement is also required, the part cost can rise to $150 to $400 or more. Adding professional labor, total repair costs generally fall between $100 and $500 depending on the specific model and the extent of the fault.

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