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Error code reference

Kenmore Range Error Code F26

Communication failure with Mini Oven Control Board (models equipped with Bake-n-Warm only).

Kenmore codesKenmore range codes

Communication failure with Mini Oven Control Board (models equipped with Bake-n-Warm only).

First step from the service manual

Check harness and connectors from the EOC to Mini Oven Control Board. Check for 15VDC to Mini Oven Control Board (red and gray wires). If harness and voltage are good, replace Mini Oven Control Board. If fault returns, replace the EOC.

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

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What F26 means on a Kenmore range

The F26 error code on a Kenmore range indicates a communication failure between the Electronic Oven Control (EOC) board and the Mini Oven Control Board. This fault applies specifically to models equipped with the Bake-n-Warm feature, which uses a secondary control board to manage the lower warming drawer or secondary oven cavity. The two boards communicate continuously during operation, and when that communication signal is lost or corrupted, the EOC triggers F26 to alert the user and halt normal operation.

The diagnostic process centers on two key areas: the wiring harness between the EOC and the Mini Oven Control Board, and the 15VDC supply voltage delivered to the Mini Oven Control Board via the red and gray wires. If the supply voltage is absent or incorrect, the Mini Oven Control Board cannot power up and communicate. Loose connectors, damaged wiring, or corrosion at the harness terminals are common physical causes of this fault.

If the harness and connectors are intact and the 15VDC supply is confirmed present, the Mini Oven Control Board itself is the likely failed component and should be replaced. If the fault code returns after replacing the Mini Oven Control Board, the EOC is generating incorrect communication signals and will need to be replaced as the next step. Working through this sequence systematically avoids unnecessary part replacement.

Source: manufacturer service documentation.

Common causes of F26

  1. 01

    Loose or disconnected wiring harness

    Wiring / connection

    The harness connecting the EOC to the Mini Oven Control Board may have come loose at one or both connector ends, interrupting communication. Inspect each connector for secure seating and check for any pins that may have backed out of the housing.

  2. 02

    Missing or incorrect 15VDC supply voltage

    Wiring / connection

    The Mini Oven Control Board requires 15VDC on the red and gray wires to power up and communicate. If this voltage is absent, measure at the connector using a multimeter to determine whether the fault is in the wiring or the source supply.

  3. 03

    Damaged or corroded harness wiring

    Part replacement

    Heat exposure, rodent damage, or moisture can corrode connector terminals or break wire insulation, causing intermittent or complete communication loss. Visually inspect the full length of the harness for discoloration, chafing, or corrosion.

  4. 04

    Failed Mini Oven Control Board

    Part replacement

    If the harness is intact and 15VDC is confirmed present, the Mini Oven Control Board itself has likely failed internally and is no longer communicating with the EOC. Replacing the board is the recommended next step.

  5. 05

    Failed Electronic Oven Control (EOC) board

    Part replacement

    If the fault returns after replacing the Mini Oven Control Board, the EOC is not generating valid communication signals and must be replaced. This is the least common cause but should be addressed if all other checks have been completed.

See the test procedure for each cause

Frequently asked questions about F26

What does F26 mean on a Kenmore range?
F26 on a Kenmore range indicates a communication failure between the main Electronic Oven Control board and the Mini Oven Control Board. This fault only appears on models equipped with the Bake-n-Warm feature. The error means the two boards have lost contact, which prevents safe operation of the Bake-n-Warm system. The most common causes are a loose wiring harness or a missing 15VDC supply to the Mini Oven Control Board.
Can I reset the F26 error code and keep using my Kenmore range?
You may be able to clear F26 temporarily by disconnecting the range from power for several minutes and then restoring power. However, if the underlying wiring or component issue is not resolved, the code will return. A reset alone does not fix a loose connector, wiring fault, or failed control board, so the root cause should be diagnosed and corrected.
Is it safe to use my range while F26 is displayed?
The F26 code specifically affects the Bake-n-Warm secondary oven system. The main oven and cooktop may still function depending on how the range responds to the fault, but operating an appliance with an active control board communication error is not recommended without diagnosing the cause first. Have the issue inspected before continuing regular use.
How do I fix the F26 error on my Kenmore range?
Start by checking the wiring harness and connectors running from the EOC to the Mini Oven Control Board, ensuring all connections are secure and free of corrosion. Next, use a multimeter to verify 15VDC is present on the red and gray wires at the Mini Oven Control Board connector. If the harness and voltage are good, replace the Mini Oven Control Board. If the fault returns after that replacement, the EOC will need to be replaced.
How much does it cost to repair a Kenmore range F26 error?
Repair costs vary depending on which component has failed. If only a wiring harness repair is needed, costs are generally lower, typically in the range of $75 to $150 for a service call. A Mini Oven Control Board replacement usually runs between $100 and $250 for the part, plus labor. Replacing the EOC board tends to be more expensive, often ranging from $150 to $400 or more for the part depending on the model, plus labor costs.

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