A light indicator is installed on ranges and wall ovens as a safety feature. The purpose of the light indicator is to tell the user when the appliance is in operation. When the unit is heating up or running, the light indicator will illuminate. A replacement part is necessary if the component is no longer functioning.A visual inspection will determine if the light indicator is working. Turn the oven on, and if the light doesn't glow, it's broken. Replacing the light indicator is a quick and easy process. Unplug the range from its power source before starting. An adjustable wrench or nut driver is required to make the replacement. The light indicator is located inside the cover plate of the appliance.This light indicator is an authentic OEM replacement part. It is sold as an individual unit. It comes sourced directly from the manufacturer. The light indicator is made of durable, high-quality materials. The component is compatible with several models of ranges. It fits into products produced by General Electric, RCA, and Hotpoint.WB25T10040 (AP3967316) replaces 1262760, 331717, 4336634, AH1019027, EA1019027, PS1019027, WB25X0093, WB25X93.