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.
Get the full diagnostic procedure for 1c8c.
- 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 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
- 01
Control board memory corruption
Part replacementThe 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.
- 02
Power surge or voltage spike
Part replacementA 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.
- 03
Gradual EEPROM or flash memory degradation
Part replacementOver 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.
- 04
Interrupted power during a control board update or initialization
Part replacementIf 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.
Frequently asked questions about 1c8c
What does 1c8c mean on a Kenmore range?
Can I fix error code 1c8c myself on a Kenmore range?
Will resetting the Kenmore range clear the 1c8c error?
Is it safe to use my Kenmore range while it shows error code 1c8c?
How much does it cost to fix error code 1c8c on a Kenmore range?
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