Disconnect the ice maker from the power outlet and pull the appliance out toward you.
Turn the ice maker around to face the back of the appliance. Take out the two screws located on the lower back panel, along with the two screws on the grille below the panel.
Pull the bottom panel toward you and push it down to remove it from the ice maker.
Plug in the vacuum cleaner and attach the brush attachment to the end of the vacuum's hose. Turn on the vacuum cleaner and brush the grate on the exposed back of the ice maker to remove dust.
Turn off the vacuum cleaner. Push the back panel onto the ice maker. Reattach the screws to secure the panel to the appliance.
Plug the ice maker back in to its power source and reposition the ice maker against the wall. Push the "On/Off" to restore ice production.