Does the error happen or while driving/turning ?
By following the resistance measurements, visual checks, and step-by-step repair advice in this article, you can solve error 0802 quickly, minimize downtime, and avoid unnecessary service bills. Always prioritize safety and refer to your model’s specific wiring diagram. If you’re unsure at any step, a Jungheinrich technician is your best ally.
: The forklift may power on (dash lights up), but it will not drive, lift, or tilt.
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Because it is a "generic" fault, the code simply tells you that communication failed, but not necessarily which component is failing to communicate. Common Causes of Code 0802
The main contactor acts as the primary switch for the forklift’s power. Audible Check
In Jungheinrich’s event‑message system, 0802 breaks down as follows: Does the error happen or while driving/turning
Remove the plastic cover plates from the tiller head and the base of the steering arm.
Several distinct mechanical and electrical failures can trigger this specific code on Jungheinrich equipment. 1. Welded or Fused Contactor Tips
Once the diagnostic steps point to the failure point, utilize the following remedies: If you’re unsure at any step, a Jungheinrich
Look for (often labeled CAN‑H / CAN‑L). Common places:
Corrupted data or loose connections along the Controller Area Network (CAN-bus) lines will interrupt the safety signal.