I have a trane furnace and the blower motor fot the chimney keeps running even after the call for heat any ideas?

Is it giving a code?////blinking led light on the circuit board,, some inducer motors do that they run the whole the furnace is operating,, does it quit when tstat is satisfied and the flame and big blower stop

The code is normal call for heat. It keeps running even after the stat is satisfied

If you cycle power to the furnace does it stay on or shut off until the next call for heat?