, encountering indicates an analogue implausible signal originating from the tiller head sensor . This malfunction fundamentally halts operation or locks out hydraulic functions because the main controller detects that the drive throttle or lift/lower potentiometers are not resting cleanly within their designated "neutral zones" upon startup or operation.
: The travel or lift switches are slightly stuck or worn out. The truck thinks you are pressing a button during startup.
: You may need to replace the print card in the steering head or the entire tiller head assembly.
: If software updates don't resolve the issue, the internal card or sensor within the tiller unit may be faulty and require replacement. jungheinrich eje 120 error code 4372 top
Error 4372 is defined as: “Top limit switch (S4) – invalid state in relation to lift command or S10 status.” Specifically, the truck’s main controller (CAN-bus based) detects that S4 has changed state without the expected sequence from S10, or that S4 remains open longer than the logic permits.
Signal plausibility mismatch flagged during a specific subsystem request. Verify analog channel tracking via diagnostic software.
: Low voltage or poor terminal connections can cause communication errors between the control unit and sensors. The truck thinks you are pressing a button during startup
: Jungheinrich has released firmware updates for the tiller head specifically to address this error. The update expands the "neutral window," making the system less sensitive to minor sensor fluctuations.
Swap out the internal tiller head board or throttle assembly. Replaces physically degraded analog sensors. Strategy A: Update the Tiller Head Firmware (Recommended)
Look for any physical damage or excessive wear in the handle mechanism that might prevent it from centering properly. Error 4372 is defined as: “Top limit switch
| Cause Category | Specific Fault | Probability | |----------------|----------------|--------------| | | Sticking or jammed limit switch roller (S4) | High | | Electrical | Short to ground or open circuit in S4 wiring | Medium | | Alignment | Cam/bracket misalignment due to mast wear or impact | Medium | | Controller | Faulty input on main board (MOSFET or pull-up resistor) | Low | | Hydraulic | Over-lift due to leaking cartridge valve (allows piston past cutoff) | Rare |
: Use compressed air to blow out dust, shrink-wrap fragments, and cardboard fibers from the throttle hinge gaps during monthly preventive maintenance checks.
The EJE 120 uses an electric lift mast with a for safety and control:
I’m currently working on a Jungheinrich EJE 120 electric pallet jack that is throwing up .
