Jungheinrich Error Code 0802 [verified] May 2026

For a technician or warehouse manager, seeing Error Code 0802 on a Jungheinrich display can be a frustrating "stop-work" moment. On many Jungheinrich EFG series forklifts, this specific code typically signals a communication failure or a missing component on the CAN-bus system. Essentially, the truck’s central "brain" is calling out to a part, and that part isn't answering. What Does 0802 Actually Mean?

: Ensure the battery is fully charged. Sometimes a simple "surface charge" can trick the display while the battery lacks the "depth" to power the motors. Electrolyte Levels jungheinrich error code 0802

• Check the Battery connections. Ensure they are tight and clean.
• Inspect the Main wiring harness for visible damage, pinching, or rubbing against metal parts.
• Locate the CAN bus connectors (follow the wiring from the display unit down to the controllers). Unplug, check for bent pins, moisture, or green corrosion, then reconnect firmly.

2. Wiring Harness Issues

• Chafing of the pedal-to-controller harness under the floor plate.
• Corroded or loose pins in the 6-pin connector near the pedal.
• Water ingress (common in cold storage or wash-down environments).

If the error persists, you can search for a detailed service manual for your specific series in the Jungheinrich Operating Manuals Database. For a technician or warehouse manager, seeing Error

1. Turn the key switch to OFF.
2. Disconnect the battery plug.
3. Wait 30 seconds.
4. Reconnect the battery and turn the key to ON.
5. Check if the code clears.

   Partial Display Functionality: In some cases, only half the display may work if the error stems from a voltage regulator issue. Check the Battery connections

   handle for damage or sticking. If a switch is stuck in one position, selecting the opposite direction will trigger Code 0802. Check Wiring and Connections:

   Step 4: Check Voltage Supply to Controllers