Amana Washer Error Code bE

The bE error code on an Amana washer indicates that the motor tachometer is generating a speed signal even though the control system has not commanded the motor to run, or is detecting a tach signal at a time when no torque output is expected. The tachometer is a feedback device attached to the drive motor that sends continuous rotation data back to the motor control board. Under normal operation, this signal should only be present when the board actively commands motor movement. When the board detects tach pulses during a non-commanded state, it interprets this as an abnormal condition and triggers the bE fault.

This fault is rooted in the motor control circuit rather than the wash motor itself. The motor control board is responsible for both commanding motor torque and interpreting the returning tach signal. If the board's internal logic or circuitry develops a fault, it may misread or falsely detect tach signals when none should be present. This can occur due to component failure on the board, corrupted control logic, or a short within the tach signal path between the motor and the board.

Because the diagnostic path points directly to the motor control board as the first and primary corrective action, this code is generally not resolved through basic resets or external wiring checks alone. A faulty motor control board that incorrectly interprets tach feedback will continue generating this code until the board is replaced. In some cases, wiring between the motor and the board may be inspected for shorts or damage before committing to a board replacement, but the board itself remains the primary suspect.