Jenn-Air Oven Error Code 1c1c
Shorted key detected on the control panel; key press continuously sensed.
Shorted key detected on the control panel; key press continuously sensed.
First step from the service manual
Check control panel key matrix; audible for key depression disabled and key disabled by control.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for 1c1c.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What 1c1c means on a Jenn-Air oven
The 1c1c error code on a Jenn-Air oven indicates that the control panel has detected a shorted key condition, meaning one or more keys in the touchpad matrix are registering as continuously pressed. The control interprets this as a stuck or short-circuited key input and responds by disabling the audible feedback tone for key presses and locking out the affected key to prevent erratic or unsafe operation. This is a protective response built into the control logic to keep the oven from executing unintended commands.
The key matrix on a Jenn-Air oven control panel is a grid of conductive traces and membrane layers that register touches by detecting contact closures between layers. When a key is shorted, the two layers of the membrane are in constant contact at that point, either due to physical damage, liquid contamination, or a failed membrane assembly. The control continuously scans this matrix and, upon detecting a sustained closure that does not match a normal timed key press, flags the 1c1c fault.
Diagnosis should begin with a thorough inspection of the control panel key matrix. Look for signs of moisture intrusion, grease contamination, or visible damage to the membrane surface. If the membrane appears intact, the issue may lie in the ribbon cable connection between the keypad and the electronic control board, or in the control board itself interpreting a false signal. Separating the keypad from the control board and checking for continuity across key positions can help isolate whether the fault originates in the membrane or the board.
Source: manufacturer service documentation.
Common causes of 1c1c
- 01
Damaged or failed touchpad membrane
Part replacementThe membrane keypad layers can stick together at a specific key location due to wear, impact, or delamination, creating a permanent contact closure that the control reads as a continuous key press. Inspect the keypad surface for bubbling, cracking, or any area that feels depressed.
- 02
Liquid or grease contamination under the keypad
Wiring / connectionMoisture or cooking grease seeping beneath the membrane can bridge the conductive layers at a key position, simulating a shorted key. Check the edges and surface of the panel for any signs of fluid intrusion or residue.
- 03
Loose or damaged ribbon cable connection
Wiring / connectionThe ribbon cable connecting the touchpad membrane to the electronic control board can develop a poor connection or short if it is kinked, partially seated, or has damaged conductors. Inspect the cable and its connectors at both ends for visible damage or misalignment.
- 04
Failed electronic control board
Part replacementIn some cases the control board itself may misinterpret input signals from the key matrix due to a failed input circuit or component on the board. This is less common but should be considered if the keypad and ribbon cable check out as undamaged.
- 05
Foreign object pressing against the control panel
Wiring / connectionA pot, utensil, or other object resting against the touchpad can physically hold a key in the depressed position. Verify nothing is in contact with the control panel before proceeding with further diagnosis.
Frequently asked questions about 1c1c
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