The F1 is a flood error triggered by water in the pan under the bottom drawer. Dry the area out, then go looking for the leak. Usually it is one of the lids not closing properly allowing water out during the wash. If the lid actuators are white in color, they need to be replaced with the new style black ones. Also look at the link supports that help guide the wiring harness and water lines behind each drawer to ensure they are still intact and not blocking the lids from closing.