I have a thermostat ( Maple /Chase) when I turn on the heat nothing is blowing what could be the problem??

Need more info. May not be the thermostat. Tell us if the furnace is doing anything or any noises you might hear

Go to the furnace. Jumper the R and W contacts. If nothing happens, check the inducer blower. If the furnace comes on, the trouble is in the thermostat or wiring.