We will see. On that unit it's like the low salt and hi salt lights.. if the unit thinks its on the high end or low end but is can still function then those lights will blink. I took it apart and there was still a little scale on the plastic parts that hold in the plates but not the plates themselves. Put it back together it still blinks. But the help manual suggests that you reset that light by holding in the function button... I did and it went away. I will see if it stays away. I have two theories, and I may contact CircuPool to ask them. Theory #1 is that a chunk broke loose and temporarily shorted a plate out and it detected it. Theory #2 is that there is a timer built into the unit (since the blinking light survived a power cycle but a reset worked). And I just happened to scale up in the same week I was supposed to service the cell anyway...
I did raise the salt level of the pool a little bit, to about 3600 on the K-1766.. it thinks it's averaging about 3700 but that's still within range .. When it first comes on it thinks the instantaneous level is 4100 but that does drop after a few minutes. It's not complaining about hi salt.
I guess I will see in the next week, but I likely will ask them manana...
The manual could mention this and the "help manual" could be less vague about it. If there is one thing I don't like about the CircuPool products it's the lack of technical information. I suppose I should look for what that same blinky-blinky light means on the Hayward AquaRite, since so far everything else is the same on that unit.
Hope that fix's it..What is the "help manual" you are talking about?