The lift and lower functions cut out unexpectedly, sometimes entirely independent of the physical tiller position.
For most Jungheinrich EJE 120 owners, means replace the drive motor encoder . It is the weakest link in the speed feedback loop. Order part number Jungheinrich 51457703 (or verify with your serial number), install it, clear the code via the diagnostic menu, and your pallet truck should return to full speed.
This is a safety-critical error. Attempting to disable or bypass the speed sensor will leave the truck without speed monitoring, which is dangerous on ramps or in tight aisles. Do not jump pins or remove sensors. jungheinrich eje 120 error code 4372 top
Ensure the tiller handle is fully upright and the butterfly switches are untouched.
A: A recurring, unresolved error code can negatively impact resale value. Having the truck professionally serviced and the firmware updated provides documentation that the issue is resolved, which is a positive selling point. The lift and lower functions cut out unexpectedly,
: The "neutral zone" (the dead zone where no action occurs) is too narrow for the sensor to reliably detect a neutral state.
: Low voltage or poor terminal connections can cause communication errors between the control unit and sensors. Order part number Jungheinrich 51457703 (or verify with
For operators and technicians, the is a known challenge that typically points to a specific failure in the tiller head assembly . This error most often signals that the "neutral zone" for the drive or lift/lower controls is either too narrow or has completely failed to register a zero-position, preventing the truck from operating safely. What Does Error Code 4372 Mean?
[ Tiller Head Position Sensors ] │ (Analog Signal Transmission) │ ▼ [ Micro-Window Neutral Zone ] <── Error 4372 Triggers Here │ (Signal Implausible / Narrow Zone) ▼ [ Drive Controller Cut-out ] 1. Narrow Neutral Zone Window
The pallet jack refuses to move forward or backward to prevent accidental, uncommanded acceleration.
Ensure the tiller handle and all control buttons (butterfly switches) move freely and are not physically stuck or gritty.