Using your Ariston front loader washing machine door handle lever is easy. Just grasp the handle firmly and pull it towards you to open the door. When closing, gently push the door until it clicks shut. As for maintenance, it's a good idea to wipe the handle down with a soft, damp cloth every few weeks to keep it clean. Avoid using harsh chemicals as they can damage the handle. If you notice any looseness or unusual movement in the handle, stop using it immediately and check for loose screws or other issues. If you can't fix it on your own, contact a professional for assistance.