Jungheinrich Eje 120 Error — Code 4372

Gretel started normally. No error. No shudder. Marcus finished his shift in silence. But at 6 a.m., as he signed out, he pulled Vincent aside. “We need to service every EJE 120. Today.”

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: Check for any mechanical backlash or loose components in the tiller head that might be physically displacing the sensor. Gretel started normally

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 . Marcus finished his shift in silence