Staff Answer
Sep 28, 2026 - 06:35 AM
A blank display usually means the cell is not receiving power from the wall-mounted power center.
First, since you mentioned an issue with insufficient water - restore the pool water level and confirm the circulation pump is primed and operating normally. Then a qualified person shoudl check the equipment breaker/GFCI, timer or automation schedule, and confirm whether the salt-system power center has power (inside a small green LED is typically illuminated). Next, with power off, inspect the P40 cable and connector for a loose connection, moisture, corrosion, bent pins, or damage. If power is confirmed going to the cell and it has a proper connection, its power protection mechanism (fuse) may have been tripped. If so, contact support for assistance along with the cell serial number.
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