If there is no LCD image I think your system is broken. Try totally powering off everything and turn back on. If that doesn't help, you could try reseating all of the connectors. Can you see the SWG readout on the PDA or iAqualink apps?
I have the same issue, I replaced the LCD panel and it still doesn't show anything. I can't find a pool tech to fix it. any update will be very appreciate it
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