Page 20
1. Press TEST button to turn off the spa, press RESET button to turn on the spa.
2. If RCD is not working, check the socket power and replace the RCD.
How to replace RCD? (please refer to page#36 for more details)
3. Take the panel out of the control base, press and hold POWER button for 5 seconds to turn off
(this step: the panel can’t be on the control base)
4. Put the panel back on the top of control base to charge and the panel will automatically turn on,
if still E81, please replace the panel.
5. If the issue doesn’t disappear, please verify the main circuit board/switch controller board
problem and replace it. (Please refer to Page#37-39 on how to replace the main circuit
board/switch controller board for more details)
Remark: Refer to the section replacing the PCB and replace the switch controller board for more
details. If you replace the panel to verify, please make sure turn off the original one.