Maytag dishwashers typically include a filter system to trap food particles and debris during the wash cycle. However, the design and maintenance requirements of the filter can vary based on the specific model and year of manufacture. For the year 2018, Maytag dishwashers might have featured one of the following filter types: Self-Cleaning Filters: Many modern dishwashers, including some Maytag models, come equipped with self-cleaning filters. These filters use a grinder or a chopper to break down food particles, eliminating the need for manual cleaning. With this type of filter, you won't need to change or clean it regularly, as the dishwasher handles the maintenance automatically. Manual Filters: Some Maytag dishwashers might have a removable, manual filter that requires periodic cleaning. These filters are typically located at the bottom of the dishwasher, under the lower spray arm. To clean the filter, you can remove it from the dishwasher and rinse it under running water to remove food residues and debris. Depending on your dishwasher usage and the amount of food debris, it's generally recommended to clean the filter every few weeks or as needed. To determine the exact filter type and maintenance procedure for a specific 2018 Maytag dishwasher model, it's essential to refer to the dishwasher's user manual. The manual will provide detailed instructions on how to access and clean the filter properly, as well as other maintenance tips to keep your dishwasher running efficiently. If you no longer have the user manual or are unsure about the filter type in your dishwasher, you can visit the Maytag website or contact their customer support for assistance. Additionally, professional appliance technicians can help identify the filter type and provide guidance on its maintenance and replacement if needed.