Can you explain to me all three sensors? I am wondering if maybe I have an older version of Aqua Logic different than what you are describing. When my digital panel scrolls through the various readings under normal operation, I will get a Water Temp & and Air Temp. Visually at my equipment I see a wire going to a probe that is epoxied right into a plumbing line. So I assume the one I am not seeing in my display is the temperature at the cell?
How do I see that on my digital readout? It's a Goldline Aqua Logic AQL PS-8 installed late 2005, early 2006.