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Error code reference

Jenn-Air Range Error Code 1c81

EEPROM CRC error in upper cavity cook profile data.

Jenn-Air codesJenn-Air range codes

EEPROM CRC error in upper cavity cook profile data.

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What 1c81 means on a Jenn-Air range

Error code 1c81 on a Jenn-Air range indicates an EEPROM CRC (Cyclic Redundancy Check) error specifically within the upper cavity cook profile data. The EEPROM (Electrically Erasable Programmable Read-Only Memory) is a small non-volatile memory chip located on the control board that stores critical operational data, including calibration settings, cooking profiles, and user preferences for each oven cavity. A CRC error means the control board has detected that the stored data in the upper cavity cook profile section does not match its expected checksum value, indicating the data has become corrupted or unreadable.

This type of error typically originates in the electronic oven control (EOC) board, which houses the EEPROM chip. The cook profile data governs how the upper cavity manages temperature ramping, bake and broil cycles, and convection behavior. When the CRC check fails, the control board cannot trust the integrity of this data and triggers the fault code to prevent potentially incorrect cooking behavior or unsafe operation.

Common causes include power surges or voltage spikes that corrupt the EEPROM contents, gradual degradation of the EEPROM chip itself over time, or failed software/firmware stored on the control board. In some cases, a momentary power interruption during an active write cycle to the EEPROM can leave the data in a corrupted state. Because the error is tied to stored memory rather than a sensor or wiring circuit, external wiring faults are less commonly involved.

Source: manufacturer service documentation.

Common causes of 1c81

  1. 01

    Corrupted EEPROM on the control board

    Part replacement

    The EEPROM chip on the electronic oven control board can develop corrupted data due to age, heat exposure, or failed write cycles. This is the most direct cause of a CRC mismatch in the cook profile data and typically requires control board replacement.

  2. 02

    Power surge or voltage spike

    Part replacement

    A sudden surge in household voltage can corrupt the data stored in the EEPROM during or between operating cycles. If the error appeared after a storm or power outage, this is a likely contributing factor.

  3. 03

    Power interruption during an EEPROM write cycle

    Wiring / connection

    If power was cut while the control board was actively writing cook profile data to the EEPROM, the resulting partial write can produce a CRC mismatch. Performing a hard reset by cutting power may resolve this in rare cases.

  4. 04

    Failed or failing electronic oven control (EOC) board

    Part replacement

    General failure of the EOC board, beyond just the EEPROM, can produce this error. Signs of broader board failure may include unresponsive controls or multiple simultaneous error codes.

See the test procedure for each cause

Frequently asked questions about 1c81

What does 1c81 mean on a Jenn-Air range?
Error code 1c81 indicates an EEPROM CRC error in the upper cavity cook profile data. The control board has detected that the memory storing the upper oven's cooking profile information is corrupted or invalid. This is a control board memory fault rather than a sensor or wiring issue. The range displays this code to prevent operation with unreliable cooking data.
Can I fix error code 1c81 myself?
You can attempt a hard reset by disconnecting the range from power for several minutes, then restoring power to see if the error clears. If the EEPROM data corruption was caused by a momentary power interruption, a reset may resolve it. However, if the EEPROM chip itself has degraded or the control board has failed, the electronic oven control board will need to be replaced, which is a more involved repair.
Is it safe to use my Jenn-Air range while error code 1c81 is displayed?
Using the upper oven while this error is active is not recommended. The error means the control board cannot verify the integrity of the upper cavity cook profile data, which could result in improper temperature management during cooking cycles. It is best to avoid using the upper oven until the fault is diagnosed and resolved.
How much does it cost to repair error code 1c81 on a Jenn-Air range?
If the repair requires a new electronic oven control board, part costs typically range from around $150 to $400 or more depending on the specific model. Professional labor to diagnose and replace the control board can add another $100 to $250. If a simple power reset resolves the issue, there is no parts cost involved.
Will resetting the range clear error code 1c81?
A power reset, performed by unplugging the range or turning off the circuit breaker for a few minutes, may clear the error if the EEPROM corruption resulted from a power interruption during a write cycle. However, if the underlying EEPROM chip or control board is damaged, the error code will return after the reset. A persistent 1c81 code after resetting points to a hardware failure requiring part replacement.

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