Jungheinrich Error Code 0802 〈Proven〉

Check the main contactor for visible damage or signs of overheating. If the contacts are welded shut, the contactor must be replaced Check Connections:

A simple but crucial cause of 0802 is a loss of power to a specific controller. A technician troubleshooting a Jungheinrich ETV Q20 reported performing standard checks—measuring coil resistances and inspecting wiring—before finally finding an open 9f2 slot fuse (rated at 7.5A/58V). Although the fuse itself was not always the final fix, it pointed to a fundamental power delivery problem. If a controller loses its voltage supply, it cannot power up, cannot communicate over the CAN network, and will be invisible to the rest of the system, triggering the 0802 error.

: Low voltage can cause "ghost" errors where modules don't have enough power to communicate properly. Ensure the battery is fully charged and the electrolyte levels are correct. When to Seek Help jungheinrich error code 0802

If the error was caused by a temporary glitch, you may be able to clear it:

Similarly, 0802.26 (sub-index 26 ) can be more specific. In the case of one reach truck, the 0802.26 error was traced back to the . This kind of detail is invaluable, as it directs the technician to a specific physical location. These sub-indexes highlight the importance of taking note of the entire error code and using advanced diagnostic tools to interpret them. Check the main contactor for visible damage or

The internal monitoring system of the controller (e.g., the AC-3 Power Control) detects a voltage mismatch. Low Voltage:

Inspect the wiring leading from the lift sensor to the main control box. Look for damaged, frayed, or broken wires. Ensure all electrical connections are tight and secure. 5. Check Hydraulic Pressure Switches Although the fuse itself was not always the

on your Jungheinrich forklift display, your machine has likely come to a halt. This specific event message typically indicates a CAN-bus communication failure

Switch the truck off and then back on. This can clear temporary logical glitches if the switches were toggled too quickly. Inspect the Control Interface: Check the physical travel switches or the Multipilot/Solopilot

JUNG-TS-0802 Date: 2024-07-15 Product Group: Jungheinrich Forklift Trucks (Electric) System: Traction Drive / Hydraulic Motor Control

Follow this systematic progression to isolate the root cause of the error. Step 1: Preliminary Electrical Screening