The Scotsman Prodigy Plus® Air Cooled 643 lb Ice Machine (N0622A-1) is an air-cooled nugget ice machine that can produce 643 pounds of ice in a day, keeping up with convenience store and medium-volume restaurant needs. It features an AutoAlert display that shows mode of production along with maintenance needs. The Scotsman - N0622A-1 - Prodigy Plus® Air Cooled 643 lb Ice Machine also has AquaDefense for sanitation, keeping away algae, microbes, mold, and bacteria that may be harmful. This ice machine is NSF-certified.
I have attached the instruction manual to the "Learn More" tab (N0622Manual.pdf). Page 14 begins to talk about the control panel and indicator lights. If the de-scale & sanitize light is ON, following the maintenance process on page 32 in the manual will reset the light. Indicator Lights: The first light (power light) is on green anytime the machine is supplied with electrical power. The second light (status light) is on green when the machine has been switched to the ice making mode. It will also blink green if the unit has been equipped with an optional Smart Board AND the Smart Board has detected potential malfunction. The third light (water light) will blink red if the water sensor does not detect water. The fourth light (de-scale / sanitize light) will glow Yellow when the time to clean timer has reached its set time since the last cleaning. It also blinks during the first part of the cleaning mode.