What are the steps to connect the water supply and drainage for the WM4000HWA?

Attach the inlet hoses to the washer's water valves securely to prevent leaks, then connect the other ends to the hot and cold water supply valves. Ensure the drain hose is properly connected to the drainage system for efficient water removal. After connections are complete, plug the washer into a grounded electrical outlet and run an initial test cycle without laundry.