Are the base lights flashing?
Press the ON/OFF button on the base to start heating the water. The light around the button will flash while the water is heating in the Glass Tea Kettle.
Is the kettle in the "Warm" mode?
The kettle automatically goes into Warm mode after reaching temperature and holds for 30 minutes at Warm (158°F/70°C). The light around the ON/OFF button will remain lit while the Glass Tea Kettle is in Warm mode. If the kettle is removed, to keep the kettle warm after replacing it on the base, slide the temperature selector over to WARM and press the ON/OFF button again.