Fault Phenomenon: Dingli GTBZ32 telescopic boom aerial work platform suddenly cannot move, smoke comes from the controller area.

Troubleshooting Process:
– Checked input voltage: voltage too high.
– Checked current: current too high.
– Checked cooling: poor cooling.
– Checked insulation: insulation failed.

Root Cause: Excessive input voltage or poor cooling caused the controller to burn out.

Required Parts: Controller assembly.