A:Answer A) Thank you for your interest in our product. The light on this heater does not go on when the unit is plugged in. However, there is a light that will be on whenever the unit is turned on, including when the heater is producing output and the fan is blowing. If you have any other questions regarding this Honeywell Heater, please do not hesitate to contact our consumer relations team. Our team can be reached by emailing SocialSupport@kaz.com. Thank you.