Jungheinrich Error Code 0802 |top| Jun 2026

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A frequent trigger for this specific fault code is a internal power regulation breakdown inside the operator display panel. If the internal step-down voltage regulators (such as a 3.3V or 5V regulator supplying the onboard microprocessor) fail, the display chip cannot boot. It goes dark or freezes, making it invisible to the rest of the CAN network. 2. CAN-Bus Wiring and Harness Degradation

A healthy CAN-bus network with two functional parallel terminating resistors should register approximately 60 Ohms . If your meter reads 120 Ohms , one of the terminating links or module connections is wide open. A reading near 0 Ohms indicates a direct short circuit in the wiring harness. jungheinrich error code 0802

A blown fuse on a critical control circuit can cause a CAN node to lose power, triggering error 0802. In one documented case, a technician found an . Swapping it with a known‑good fuse from slot 1F13 did not change the code, but the discovery confirmed that a lack of power to a module was part of the problem.

If the contacts are welded or the mechanical spring is broken, the entire contactor assembly should be replaced. Never attempt to file down welded contacts; the protective silver/copper coating is gone, and they will weld again almost immediately. This public link is valid for 7 days

The most frequent cause of this code is physical damage to the contactor contacts. When the forklift operates under high loads, or if the battery voltage is critically low, drawing power creates intense electrical arcing across the contacts. Over time, or during a sudden high-current spike, this heat can literally weld the copper tips together. When the controller terminates power to the contactor coil, the spring cannot pull the welded contacts apart. 2. Faulty Contactor Return Spring

After making repairs, clear the error using either: Can’t copy the link right now

The contactor tips may be welded together or mechanically jammed in the "ON" position. Wiring Faults: