With regular use, wash rinse/spray arms can become clogged with hard deposits. It is important to drain your machine daily, rinse and check there are no blockages or debris. Wash and rinse jets are crucial to the wash result and checking your machines operation manual makes sure you’re following all the required checks for the continued flawless running of your machine. In circumstances where your wash/rinse arm is damaged, we recommend replacement and Norris Spares have parts on hand to get your dishwasher back to optimal wash.