For professional assistance or parts, you can consult technical forums like Forklift Action or contact an authorized Jungheinrich Service Provider Discussion: Error 4372 - Forums - Forklift Action
In plain English: The truck’s main controller (the “brain”) sent a command to the drive motor inverter to turn at a specific speed (e.g., 1500 RPM). The motor’s feedback sensor (encoder) reported back a speed that was than commanded – creating a “negative deviation.” The controller calculates the difference between desired speed and actual speed. When that difference exceeds a pre-set tolerance (usually 20-30%) for a sustained period (more than 0.5 seconds), the system triggers lockout mode and displays 4372 . jungheinrich eje 120 error code 4372
: The truck will typically not drive if the neutral zone cannot be verified. For professional assistance or parts, you can consult
Ensure no dirt or objects are wedged under the butterfly (travel) switch or the lift/lower buttons . : The truck will typically not drive if