Jungheinrich Eje 120 Error Code 4372 ((full))

When the DC-DC converter is dead or the main processor fails:

Measure the voltage of the battery pack under load. If the voltage drops significantly when you attempt to drive, the battery is the likely culprit, not the controller. 3. Inspect the Main Contactor jungheinrich eje 120 error code 4372

This error is usually – meaning the truck will disable travel and require a key cycle or controller reset after the root cause is fixed. When the DC-DC converter is dead or the

Loose or corroded connections generate heat and voltage drop. Inspect the Main Contactor This error is usually

(the "window" where no movement is triggered) in the drive or lift/lower controls is too narrow.

A short to ground on a sensor supply line (e.g., lift position sensor, throttle hall sensor) can drag down the entire logic supply.

The analog sensor inside the tiller arm may be out of calibration or experiencing "backlash".