Hi all, Hope this makes sense and required info is present. Any help or suggestions is appreciated, thanks.

Furnace brand is Nordyne, about 3 years old, cooling portion model# of unit is JS3BA-036KA. This issue started last week. The A/C still works, but now the blower portion? Doesn't shut off most times. Opened the panel and the LED blinks in correlation to "limit circuit open or external load on "W". Tried jumping all connections in line to the blower to get it to stop, but no avail. Any tips/troubleshooting I can run through? Would the circuit board need to be replaced? Or am I missing something simple? The unit has been nothing but trouble since I moved into the house 2 years ago, not that that really helps... Thanks, again.