Fault Phenomenon: Sinoboom GTJZ16 scissor lift aerial work platform when charging, the charger overheats, the fan does not spin.

Troubleshooting Process:
– Checked fan motor: motor burnt.
– Checked fan blade: blade seized.
– Checked control board: no output from control board.
– Checked dust: excessive dust.

Root Cause: The charger cooling fan motor is burnt.

Required Parts: Charger cooling fan.