If there is mechanical backlash (slop) in the tiller arm or handle components, the sensor may not return to the exact zero position required.
When this event occurs, the forklift will halt its operation—frequently —to prevent unauthorized or unsafe movement. This guide provides a comprehensive breakdown of why error 4372 triggers on the Jungheinrich EJE 120 electric pallet jack and how to fix it. Core Causes of Error Code 4372 1. Narrow Factory Neutral Zone (Firmware Bug) jungheinrich eje 120 error code 4372 top
: The fault often occurs if there is no clear "neutral zone" for drive or hydraulic functions. If there is mechanical backlash (slop) in the
If you are encountering this error, follow these technical troubleshooting steps: 1. Initial Checks Core Causes of Error Code 4372 1
Visually examine the butterfly travel switches and lift/lower buttons. Do they spring back smoothly to the center position?
The Jungheinrich EJE 120 relies on a precise analog voltage curve to determine when the control tiller is in its neutral rest position versus when an operator is actively calling for drive, lift, or lower commands. If the electronic control unit (ECU) detects an unexpected voltage profile, it drops into a fault state. The problem generally stems from three specific culprits: 1. Ultra-Narrow Electronic Neutral Zone