Do the sensor lights go out if you manually move the float on either sensor? What if you unplug a sensor? Have you tried pulling power from the ATO and plugging it back in?
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72g bowfront, t5.
29g JBJ nano cube, ATI 26HD.
Livestock: clown fish, chromis, coral beauty.
Corals: Toadstool, maze brain, candy cane, mushrooms (purple & green hairy), button polyps, green zoas, GSP.
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