Please follow these troubleshooting steps first:
1. Check if the GFCI is tripped → If yes, press the "Reset" button to see if the system will get the power again.
2. Check if the three power-supply cables (UVW motor cables) are stably connected to both the jet unit and the control box
If the issue continues, please provide:
1. A brief description of the troubleshooting steps you have already tried.
2. Photos or videos showing the issue.