Just had a new battery installed ,now front heater blower not working. 40 amp fuse checked good.

Try disconnecting the battery again for 2-3 minutes. This will reset the system. Still won't blow? Could be the switch, relay, blower control module or resistor block, or the motor itself.

You have a resistor block and a blower relay if you have manual temperature control. You have a blower control module and a relay if you have automatic temp control.