If you have access to a Jungheinrich JUDIT diagnostic tool, check the "actual value" of the sensor. If the value does not return to the appropriate neutral setpoint, the potentiometer or sensor may need replacement. Summary of Potential Fixes Check for return to neutral position. Potentiometer Inspect for damage, clean, or replace. Wiring Check for breaks or loose connectors. Firmware Update the tiller head firmware (requires technician).
Error indicates a loss of communication between the main vehicle controller (Zapi or Jungheinrich controller) and the display unit (CAN-Node). The controller sends a periodic "heartbeat" signal to the display via the CAN-Bus wiring. If the controller does not receive a response from the display within a set timeframe, it triggers code 4372 to protect the system from operating with a loss of control interface. jungheinrich eje 120 error code 4372 work