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Blank panel
A blank reading on a spa Control Panel indicates components such as RCD failure, PCB failure or
a connection issue between the Panel & Base.
1. Test the socket voltage, is the voltage close to wall output?
2. Reset RCD and reactive the panel.
3. Replace a control panel, and power on the system again.
4. If blank panel still persists, replace a new PCB or RCD, refer to the section replacing the PCB
or RCD (page#36-37) for more details.