Doe the blower motor have it's own relay or fuse?
I always go for the easy stuff first.
Chris, I think I need to give you a run down of my auto mechanic knowledge and skills. When a vehicle doesn't start the first thing I do is check to make sure the engine is still under the hood. If the engine is still indeed under the hood I have to dig a little bit deeper into my knowledge base. I look around engine to see if any piece or part has a neon sign flashing to it saying "I'm the problem". Frankly, that usually doesn't accomplish much. So I finally have to go to my closing gambit. I point my middle finger toward the engine and repeatedly teach the engine every single word of profanity that I know.
Now before you call me the nadin of auto mechanics I can say with honesty that I have removed, repaired and replaced a seat. I've replaced a water pump, an alternator, and a master cylinder. Oh, and I once used electrical tape to fix some ceramic looking piece that had broken on a Ford Ranger engine. I don't know what that piece was. I don't know what it was supposed to do. The mechanic I had on the phone said it wasn't the problem. After all his ideas failed, I stuck one end of the broken ceramic looking piece to the broken piece that was on the engine. As soon as I did the engine would start.
To be more serious, although I haven't checked them I do know where the fuses are, but since the problem was intermittent for a while wouldn't the relay be more likely?