Fault Phenomenon: Genie S-45 telescopic boom aerial work platform when the charger is operating, the cooling fan does not spin, charger overheats.

Troubleshooting Process:
– Checked fan motor: motor burnt.
– Checked wiring: wiring open circuit.
– Checked fuse: fuse blown.
– Checked dust: dust buildup causing seizing.

Root Cause: The charger cooling fan motor is burnt or seized by dust.

Required Parts: Charger cooling fan.