Why does my machine not work and light is off?

Why does my machine not work and light is off?

To confirm the issue in detail, could you please kindly help us confirm the following information?
1. Check cable and wire connections.
2. Check the wiring of the gear switch and wiring cap to ensure that the wiring is firm.
3. Replace with a new gear switch.
If it still don’t work, Wondering if you can take a short vide for us at services@callsupport.com to analysis in detail if convenient?
Once the above information is provided, we will move forward to your case as soon as possible.