Jungheinrich Eje 120 Error Code 4372 Top May 2026

When the Jungheinrich EJE 120 (an electric walkie pallet jack) throws error code 4372, it usually means it’s having a "neutral zone" identity crisis. What’s Happening?

The update expands the "window" in the neutral zone, making the sensor less sensitive to minor fluctuations that trigger the 4372 code. Hardware Replacement:

Hi everyone,

Firmware Issue: Jungheinrich has acknowledged this as a common firmware problem where the "neutral window" is too narrow.

Disclaimer: Always follow OSHA/ANSI safety standards and Jungheinrich’s official service manual. High-voltage components exist on this truck – disconnect the battery before any electrical work. jungheinrich eje 120 error code 4372 top

For Operators: Call maintenance. This is not a user-resettable code without tools.

If the basic troubleshooting steps do not resolve the issue, it may be necessary to perform more advanced troubleshooting and repair procedures. These may include: When the Jungheinrich EJE 120 (an electric walkie

4. Voltage Drop at the Tiller Head

If your EJE 120 uses a weak battery or has corroded battery terminals, the voltage reaching the top module may dip below 18V during a lift command. The logic board requires stable 24V nominal; if it browns out, it stops communicating, throwing code 4372.

Step 5 – Cross-Check with S10 (Optional but Recommended)

• S10 is NO, closes just before S4.
• If S4 opens before S10 closes, code 4372 triggers. Adjust cam positions: S10 must close 2–3 mm before S4 opens.