Fault Phenomenon: Green Force hydrogen fuel cell forklift instrument displays a hydrogen leak alarm, vehicle automatically cuts off hydrogen supply.

Troubleshooting Process:
– Checked line fittings: fittings loose.
– Checked hydrogen tank: tank body undamaged.
– Checked sensor: sensor sensitivity too high.
– Checked valve: valve seal failed.

Root Cause: The hydrogen line fitting seal gasket aged, causing a minor leak.

Required Parts: Hydrogen line seal gasket and inspection.