Answer to: Is there a fan in the heater?Yes. If there is no air is coming from the heater, that's mean the fan doesn't work.
Answer to: Device does not workFirst make sure the heater is connected to the outlet power "plugged in." If it is and the device still won't turn on, try a different outlet. If this does not work then there is issue with the heater from inside. Go to this link for more information: Insignia NS-HTMC01-B Troubleshooting