Clean any accumulated dirt, dust, or grease off the sensor, as these can interfere with its operation. Ensure the sensor is securely mounted and not misaligned. 4. Check Wiring Harnesses
Need further assistance? Leave a comment below or contact a certified Jungheinrich service center with your truck’s serial number and the exact error code text from your display.
Measure across the CAN-High and CAN-Low lines at the diagnostic port.
When this error triggers, the forklift's internal safety parameters instantly engage, which shuts down the main contactor (K1 relay) and inhibits all travel and hydraulic lifting functions . jungheinrich error code 0802
. This is a safety-critical fault that prevents the truck from operating to avoid uncontrolled movement. sd95d2cbd361a0b8d.jimcontent.com Common Causes Main Contactor Stuck:
In 80% of cases involving error 0802, the issue is a broken wire in the steering axle cable harness due to repetitive turning motion. Repairing or replacing that harness usually resolves the code.
Before any inspection, park the truck on a level surface, turn off the key, disconnect the battery (or use the main disconnect switch), and wait at least 5 minutes for the drive controller capacitors to discharge. Clean any accumulated dirt, dust, or grease off
Another practical cause is the – a mini single‑pole DC contactor used on many Jungheinrich trucks. If its contacts are not making a proper connection, the dashboard may log a supply loss and show error 0802.
This is the most common solution. On many Jungheinrich motors, the sensor is replaceable without swapping the entire motor.
Voltage drops are often caused by resistance in the circuit. Battery Plugs Check Wiring Harnesses Need further assistance
When the display board is intact but the code persists, check the wiring: Disconnect the truck battery for safety.
The main lift controller is failing to interpret the sensor data correctly.
A breakdown of the 0802 code's structure: