I have a rheem hvac with a fan that will not turn off unless I unplug the 110 from the outlet.

I have varified that the problem is not in the thermostat.

Is this a window unit? All outside condenser units run on 230 volt and shouldn`t be just plugged into a outlet,, more info needed

This is a gas forced air furnace running on 110 for the blower. The AC unit runs on the 220. It is currently cooling and the fan is running constantly. The only way to stop the blower is to unplug the 110 outlet connected to the furnace. If I turn of