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Error code reference

Kenmore Range Error Code 1c8c

Incorrect cyclic redundancy check (CRC)

Incorrect cyclic redundancy check (CRC) – control disables all outputs.

First step from the service manual

Replace control board.

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

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What 1c8c means on a Kenmore range

Error code 1c8c on a Kenmore range indicates a failed cyclic redundancy check (CRC) within the electronic control board. A CRC is a data integrity verification process that the control board performs on its own stored firmware or configuration data. When the board's internal processor computes a checksum of its memory contents and the result does not match the expected value, it recognizes that the stored data has been corrupted or altered. As a safety response, the control disables all outputs, meaning burners, bake and broil elements, and any other controlled functions will not operate.

CRC failures of this type originate within the control board's non-volatile memory, typically EEPROM or flash storage. The corruption can result from a power surge or voltage spike that wrote incorrect data to memory, a gradual degradation of the memory chip over time, or an interrupted firmware process. Because the board itself cannot correct or re-initialize corrupted memory through a simple reset, the fault is considered a hard failure of the control board's internal integrity.

Since the error directly reflects a verified data integrity failure inside the control board's processor or memory, no external sensor, wiring harness, or peripheral component is responsible for triggering this code. The diagnostic path leads directly to control board replacement as the corrective action. Attempting to reset the unit by cutting power may temporarily clear displayed faults in some cases, but the underlying memory corruption will cause the code to return once the board performs its startup CRC check.

Source: manufacturer service documentation.

Common causes of 1c8c

  1. 01

    Control board memory corruption

    Part replacement

    The non-volatile memory inside the control board has stored incorrect or corrupted data, causing every startup CRC check to fail. This is the direct cause of the 1c8c code and requires board replacement.

  2. 02

    Power surge or voltage spike

    Part replacement

    A sudden surge from the power supply or utility line can write bad data to the control board's memory during operation. Check for signs of burn marks or discoloration on the board as a secondary indicator.

  3. 03

    Gradual EEPROM or flash memory degradation

    Part replacement

    Over time, the memory components on the control board can degrade and lose the ability to reliably hold their stored values, leading to checksum failures on startup.

  4. 04

    Interrupted power during a control board update or initialization

    Part replacement

    If power was lost at a critical moment during a firmware initialization cycle, the resulting incomplete write to memory can permanently corrupt the CRC data stored on the board.

See the test procedure for each cause

Frequently asked questions about 1c8c

What does 1c8c mean on a Kenmore range?
The 1c8c code means the control board has failed its cyclic redundancy check, which is an internal test that verifies the integrity of the board's stored programming data. When this check fails, the board determines its memory is corrupted and disables all outputs as a safety measure. No burners or heating elements will function while this fault is active. The control board must be replaced to resolve the issue.
Can I fix error code 1c8c myself on a Kenmore range?
If you are comfortable working with appliance electronics and can safely disconnect power at the breaker, replacing the control board is a repair that a skilled DIYer can attempt. The process involves removing the back panel or control console, disconnecting the wiring harness connectors from the old board, and installing the replacement. However, if you are unsure about working with high-voltage appliance components, hiring a qualified technician is the safer choice.
Will resetting the Kenmore range clear the 1c8c error?
Cutting power to the range at the circuit breaker for several minutes may temporarily clear the displayed error, but the 1c8c fault will return once power is restored. This is because the control board performs its CRC check every time it powers up, and the underlying memory corruption is not fixed by a reset. A full control board replacement is necessary for a permanent fix.
Is it safe to use my Kenmore range while it shows error code 1c8c?
When the 1c8c error is active, the control board disables all outputs, so the range will not allow burners or oven elements to operate. Because the unit is functionally non-operational in this state, there is no safe way to cook with it until the fault is corrected. Do not attempt to bypass the control board to restore power to heating elements.
How much does it cost to fix error code 1c8c on a Kenmore range?
The cost to repair a 1c8c error depends primarily on the price of the replacement control board, which can range from roughly $150 to $400 or more depending on the specific model. If you hire a technician, add labor charges that typically range from $80 to $200 depending on your location and service provider. Obtaining a model-specific board quote before committing to the repair is advisable, especially on older units where the repair cost may approach the value of the range.

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