415-52913-02 Bradford White URG275 and URG2100 ICON Natural Gas Control Valve Built Tough Cover: Designed to protect internal components during transport and installation. Ergonomic Control Knob: Allows for precise temperature set point selection and ease of pilot lighting. Easy-View LED Light: Visible from standing position. Intelligent Diagnostics: An exclusive multicolor LED light diagnostic system Green: Pilot on/normal burner operation o Amber: Warning - Service recommended o Red: Critical - Service required Simplified Diagnostics: Reduced number of error codes to streamline trouble shooting.