Fault Phenomenon: JLG 1930ES electric scissor lift aerial work platform connecting the charger, the charging indicator light does not illuminate, unable to charge.

Troubleshooting Process:
– Checked charging socket: socket pins burnt.
– Checked battery fuse: fuse blown.
– Checked charger output: charger has no voltage output.
– Checked battery cells: individual cell voltage too low triggering protection.

Root Cause: The vehicle charging socket internal wiring is open circuit or the charger is faulty.

Required Parts: Charging socket assembly or charger.