I have an Aqualogic PS8, about 3 1/2 years old. For over a year, due to consistently low chlorine levels, I've resorted to manually dosing the pool with liquid chlorine. I could not figure out why the chlorine was always low until one day I carefully observed the "diagnostics" display. The SWG was set at 75%, but it was only on for 24 minutes of the first hour of the cycle, and then it did not turn on again for the rest of the cycle. Running two cycles a day meant the SWG was only on for a total of 48 minutes.
I can manually restart the SWG by pressing the + or - and it will stay on for 24 more minutes before shutting off and staying off the rest of the cycle, unless I manually restart it again.
I experimented with different %:
Between 30 and 90%, the SWG is on for only the first 24 minutes of a cycle.
At 10%, it is on for the first 12 minutes.
Superchlorinate runs as long as it is set for.
The cell is clean.
Water chemistry is within ranges
Water temp is not a factor as this is a year-round issue except Dec and Jan when water is too cold.
There are no warning lights or error messages.
I pulled the circuit board today but found nothing amiss. It is very clean and shiny, looks like new.
Anyone encounter this problem???