Hi Geeper! I can definitely understand the concern with the burning smell. Typically this is caused by food particles or residue on the inside of the microwave. However, we would be more than happy to discuss the details of what you experienced to ensure the microwave is functioning properly. Please reference ticket number 1142847929, and reach out to us through either Facebook Messenger: http://m.me/samsungsupport; or Twitter: https://twitter.com/messages/compose?recipient_id=18768513. ^Jecca