Saab Blower Motor

It's getting close to winter up here in Minnesota and my blower motor is working intermittently. It will work for a week and stop for a day or two, and then start back up again. I need to get this fixed as soon as possible. The ACC unit still shows that it's blowing air when it's not. Any ideas whether or not this is the resistor or the fan speed controller? Any input would be great.

I ran a diagnostic and the ACC is registering one error code "02".

Thanks!