Vortex technology distributes heat evenly for small or personal spaces</br>Small footprint is perfect for on or under tabletop/desktop use</br>2 heat settings and fan-only mode for year-round use</br>Advanced safety features including tip-over protection and automatic safety shut-off system for worry-free use</br>Quiet operation and backed by a 3-year limited warranty, kindly refer the user manual given below for troubleshooting steps.</br></br>Product Description</br></br>VH202, black, personal Vortex heater, designed to circulate heat specifically around your personal space, making it perfect for desktop, tabletop or under desk heating applications, 2 heat settings, high outputs 750W & 375W on low, cool touch cabinet & grill, tip over switch & over heat protection, quiet operation, 3 year warranty.</br>