Fault Phenomenon: General electric forklift front and rear lights do not work, night operation impossible.

Troubleshooting Process:
– Checked bulbs: bulbs burnt.
– Checked switch: switch failed.
– Checked fuse: fuse blown.
– Checked wiring: wiring open circuit.

Root Cause: The common fuse for the lighting system is blown or the wiring is open circuit.

Required Parts: Fuse or harness repair.