Hello everyone , I connected everything exactly according to the manual. The optical sensor is almost half submerged in the water, it is definitely 1 cm below the water surface. Mechanical sensor on a separate magnet, above. I turn on the osmolator and what ... all the LEDs light up as it should be. then the "level" LED lights up and the pump turns on. Why? after all, the optical sensor is submerged. For now, I do not use ato . What is the reason for this action I do not know, the optical sensor is clean.Please hulp