How do you replace the carbon filter and where do you find the replacement part?

Hello, there is no carbon filter. There is a Charcoal filter. The charcoal filter is behind the grease filter. It cannot be cleaned and should be replaced every 6 months, while the display shows the filter alert “Change the Charcoal Filter and reset reminder in Settings”. To remove the filter alert and reset filters duration: After replacing the charcoal filter (see the instructions on the Quick Start Guide for how to replace the charcoal filter), to remove the filter alert on the display, retrieve another 6 months duration. 1. Press Settings button, use Arrow buttons until Cleaning and Maintenance, press CONFIRM/MENU button to select. 2. Use Arrow buttons to select Reset filter submenu, press CONFIRM/MENU button to reset. The charcoal filter retrieves another 6 months duration now. NOTE: For roof venting and wall venting, the charcoal filter is not necessary, but the filter alert will still appear every 6 months, you can follow above steps to remove the alert. https://shorturl.at/Ofy4y You may visit www.kitchenaidparts.com to find and purchase parts online, chat with a parts specialist, or you may also call (844)200-5440 7 AM - Midnight - 7 days a week, to speak with a part specialist by phone.