ATO Stopped Working

[d2mini]

It just stopped working so I've been going through the settings in Control Center trying to figure it out.
Running firmware 6.08 and GHL CC from 7/14. None of this has changed in a year. Been waiting for the cloud software.
I'm using an optical level sensor plugged into the level port above the temp port on my 3ex.

So if i pull up the Level tab in CC, i choose control circuit 1, set the operational mode to Auto Top Off, check the box Always Active, Sensor 1, and set my max on-time.
Then I got to the socket i have the pump plugged into and set that to Fill Water (ATO only) and next to that is a drop down menu and I left that at "1". Invert is unchecked and blackout delay is zero.

I tried using a float level sensor and it's not working either. For some reason the socket is not being activated. There is nothing wrong with the socket. It will activate if I set it to Always On.

If I use the screen on the Profilux box and go to Level Sensor and Diagnostic is says "12"

Any idea why it's not working?

[Vinny]

Hi Dennis,

Have you tried using another level port?

[d2mini]

Hi Dennis,

Have you tried using another level port?

I plugged it into Level 3&4 port and set control circuit 3 to auto top off and it's still not working.
I feel like I'm missing something.
And why is the default setting under "Used Sensors for This Control - Sensor 1" set to 11? I set it to 1.

In the socket setting, next to Fill Water (ATO Only) there is a pull down menu and it's set to 1. No idea what this is for.

[d2mini]

I updated both the firmware and Control Center to the latest versions. Still not working.

[d2mini]

Well, something must be busted in the optical level sensor.
I cleaned the mechanical float sensor real good and tried that and it works fine now.
But no matter what I do, the optical sensor won't work any longer.

[SteveAtkins]

At one time I thought my optical sensor had died as well. It turned out to be dirty, although I could not see it by looking.

I believe it was related to the nitrate/phosphate reactor I had installed a few weeks earlier causing a bacterial build up on the sensor. I moved it to part of my sump that has a lot more flow and increased the ATO response delay to about 1 minute to allow for the rougher water there and have had no problems since. I also had to make sure it was far enough away from the source of turbulence to not attract bubbles landing on it.

Steve