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Error code reference

Jenn-Air Range Error Code F6E6

Lost communication between UI and AM1.

Jenn-Air codesJenn-Air range codes

Lost communication between UI and AM1.

First step from the service manual

While in Diagnostic Mode, press Component Activation and ensure AM software, USIF software and EEPROM versions appear on the display.

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

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What F6E6 means on a Jenn-Air range

F6E6 indicates a lost communication fault between the user interface (UI) board and the appliance manager module, referred to as AM1. These two control components communicate continuously during operation, exchanging commands and status data. When that communication link is interrupted or fails to establish, the control system logs F6E6 and typically disables range operation to prevent unsafe or uncontrolled behavior.

The AM1 module acts as the central processing unit for the range, coordinating oven functions, burner control, and safety logic. The UI board serves as the front-end interface, translating user inputs into commands that are sent to the AM1. Communication between these two components travels over a dedicated data bus, and failures can originate from either board, the wiring harness connecting them, or corrupted firmware versions that create an incompatibility between the two modules.

The first diagnostic step involves entering Diagnostic Mode and pressing Component Activation to verify that the AM software version, USIF software version, and EEPROM version all appear on the display. If any of these versions are missing or mismatched, the communication failure may stem from a firmware incompatibility or a corrupted EEPROM rather than a hardware failure. This makes software verification a critical early step before replacing any physical components.

Source: manufacturer service documentation.

Common causes of F6E6

  1. 01

    Faulty or loose wiring harness between UI and AM1

    Wiring / connection

    The ribbon cable or wiring harness connecting the UI board to the AM1 module can become loose, corroded, or damaged over time. Inspect the connectors at both ends for secure seating and signs of burn marks or corrosion.

  2. 02

    Software version mismatch or corrupted EEPROM

    Wiring / connection

    If the AM software, USIF software, or EEPROM versions do not appear correctly in Diagnostic Mode, a firmware incompatibility or corrupted EEPROM may be preventing communication. This is confirmed by checking version data during Component Activation.

  3. 03

    Failed UI board

    Part replacement

    The user interface board itself may have failed, preventing it from sending or receiving data on the communication bus. A board that displays error codes but cannot complete version handshaking is a strong indicator of UI board failure.

  4. 04

    Failed AM1 module

    Part replacement

    If the appliance manager module has failed internally, it will not respond to communication from the UI board. This is typically diagnosed after ruling out wiring issues and confirming the UI board is functioning correctly.

  5. 05

    Power supply irregularity to one of the control boards

    Wiring / connection

    An unstable or insufficient power supply to either the UI board or the AM1 can disrupt communication even when the boards themselves are intact. Check for proper voltage at both control board connections.

See the test procedure for each cause

Frequently asked questions about F6E6

What does F6E6 mean on a Jenn-Air range?
F6E6 signals that communication has been lost between the user interface board and the AM1 appliance manager module. These two boards must continuously exchange data for the range to function properly. When that communication link breaks down, the range logs F6E6 and may disable normal operation. Diagnosing this code starts with verifying that AM software, USIF software, and EEPROM version data all appear correctly in Diagnostic Mode.
Can I fix F6E6 myself or do I need a technician?
Some causes of F6E6, such as a loose wiring harness connector, can be addressed by a knowledgeable DIYer comfortable working inside the range after disconnecting power. However, if the issue involves a software version mismatch, corrupted EEPROM, or a failed control board, a qualified technician with access to diagnostic equipment and updated firmware will likely be needed to resolve the fault correctly.
Is it safe to use my Jenn-Air range while F6E6 is displayed?
It is not recommended to continue using the range while F6E6 is active. A loss of communication between the UI and AM1 means the control system may not be able to reliably regulate oven temperature, burner output, or safety functions. Discontinue use and diagnose the fault before operating the appliance again.
Will resetting the range clear the F6E6 error code?
A power reset by disconnecting the range from its power source for several minutes may temporarily clear the fault if the communication loss was caused by a one-time glitch. However, if the underlying cause is a hardware failure, a loose connector, or a software mismatch, the code will return once power is restored. A reset alone is not a reliable fix for F6E6.
How much does it cost to repair F6E6 on a Jenn-Air range?
Repair costs vary depending on the root cause. If only a wiring connector needs to be reseated, the cost may be limited to a diagnostic service call, typically in the range of $75 to $150. If a UI board or AM1 module requires replacement, parts alone can range from $100 to $400 or more depending on the specific model, with additional labor costs on top of that.

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