Hello, Duromo! Thank you for your review. Did you know, with your new appliance, modern, high-efficiency compressors operate much faster than older models? The compressor may have a high-pitched hum or pulsating sound. These are all normal sounds and soon will become familiar to you. The sounds indicate your appliance is operating as designed. Hard surfaces, such as vinyl or wood floors, walls, and kitchen cabinets may make sounds more noticeable. We hope this helps. Should you need further assistance, please feel free to connect with us by chatting with one of our live agents Mon-Fri, 8:30 am - 8 pm EST.-Briana