Kenmore Washer Error Code F6

The F6 code on a Kenmore washer signals a serial communication error between the Central Control Unit (CCU) and the User Interface (UI) board. These two boards must constantly exchange data for the washer to operate, and when that link fails or becomes unreliable, the machine stops and displays F6. The fault can stem from wiring issues, loose connectors, incorrect power cord terminal positions at the RFI filter, or a failed control board.

No, you should not continue using the washer while F6 is active. The error indicates a breakdown in communication between the core control systems, which means the machine cannot reliably manage cycles, motor control, or safety-related functions. Continuing to run it risks incomplete cycles or unpredictable behavior. Disconnect power and diagnose the fault before resuming use.

If the fix involves only correcting the RFI filter wiring or reseating connectors, the repair cost is minimal, covering only labor time. If the CCU or UI board requires replacement, parts alone typically range from around 80 dollars to 250 dollars or more depending on the model, with labor adding additional cost. Getting a diagnostic service call first, usually in the 75 dollar to 150 dollar range, helps confirm which component is actually at fault before committing to parts.

Some causes of F6 are accessible to a knowledgeable DIYer. Checking that the power cord terminals are correctly positioned at the RFI filter (white neutral, black line) and reseating harness connectors between the two boards are reasonable first steps after unplugging the machine. However, if those steps do not resolve the fault, diagnosing and replacing control boards requires comfort with electronics and is generally best handled by a qualified technician.

Unplugging the washer for several minutes and restoring power may temporarily clear the F6 code if the fault was caused by a transient communication glitch. However, if an underlying wiring issue, incorrect RFI filter connection, or component failure is present, the code will return. A reset alone is not a fix and should be followed by a proper inspection of the wiring and connectors.