What does the F09 E01 error code mean on my Maytag washer?

The F09 E01 code indicates a drain pump system error, often caused by incorrect drain hose installation, such as the drain hose extending more than 4.5 inches (114 mm) into the standpipe. Check that the drain hose is not kinked, pinched, or blocked, and ensure the end of the drain hose is not higher than 96 inches (2.4 m) above the floor. Remove any clogs from the drain hose and use the drain hose form to securely attach it to the drainpipe or tub.