Have a Lectra / San MC Sanitation device that started acting up last week. As a result I decided to give it the Treatment tank / Electrode cleaning, hoping it would bring unit back to normal operation. After the muriatic acid solution treatment.....no change. Press flush button; green lite comes on (not flashing, just solid). Then about 20 or so seconds; red flashing light comes on. Flashes once per second which indicates LOW TREATMENT. It'll stay flashing until I press reset button. Don't know what else to try.