Ensure the Power Cord is fully secured into the Power Supply Block. If the indicator light in the Power Supply Block does not light up when plugged into a wall outlet, try another wall outlet. After plugging into another wall outlet that is confirmed to be operational (providing power), and the Power Supply’s indicator light still does not light up the Power Supply needs to be replaced. If the indicator light turns on, the Power Supply is good. Please Note Your Power Supply’s indicator light may display either BLUE or GREEN depending on the model that came with your system.