Fault Phenomenon: CM Lodestar electric hoist after releasing the button, the motor continues to run, unable to stop.

Troubleshooting Process:
– Checked contactor: main contacts welded due to high temperature.
– Checked control button: button return spring broken.
– Replaced AC contactor and button switch.

Root Cause: The contactor main contacts welded, preventing the circuit from opening.

Required Parts: AC contactor, button switch.