What does the F09 E01 error code mean and how do I resolve it?

The F09 E01 error code indicates a drain pump system error, often caused by a drain hose that extends into the standpipe farther than 4.5 inches (114 mm). To resolve it, check the drain hose for proper installation, make sure it is not kinked, pinched, or blocked, remove any clogs, and ensure the end of the drain hose is no higher than 96 inches (2.4 m) above the floor. (Page 17)