If the pedal returns physically but the error persists, the electronic sensor might be sending a false signal.
The accelerator potentiometer or "hall effect" sensor may have shifted or become faulty, sending a "pressed" signal even when the pedal is physically up.
Follow these steps in order. In most cases, the solution is simple and will require only a few seconds.
: Ensure there is no debris or floor mat preventing the pedal from returning to the neutral position.
The steps are: 1) Press the "h/time" and "snail" buttons simultaneously to access the service interval reset screen or press "SET" Jungheinrich Forklift Error Codes - Machine Maxx USA 1901.1 – Drive pedal activated during startup. Machine Maxx USA
If the error persists after releasing the pedal and restarting, it may indicate a faulty accelerator sensor or a calibration issue with the drive controller, requiring professional service . Jungheinrich Forklift Error Codes - Machine Maxx USA
If your Jungheinrich forklift, stacker, or reach truck is displaying this error code, it typically indicates a safety-related issue that prevents the machine from starting. Here is a comprehensive guide to understanding, troubleshooting, and clearing this code. What is Jungheinrich Error Code 1901.1?
If the sensor is fine, the controller may be getting a bad signal due to wiring issues. Check for frayed or disconnected wires around the pedal assembly. When to Call a Technician
