what is the purpose of the blower motor diode?

[POS carb]

I'm having issues with my blower motor drawing too much current. I'm pretty sure it's just old and worn out but looking through the diagrams I can't understand the purpose of the diode wired in parallel to the blower. Can anyone enlighten me? :)

http://img18.imageshack.us/i/blowery.jpg

[Oldblueaccord]

I think its to keep it running the same direction. Just a guess I'm not that good electrical.

Whats your motor pulling. I think mines pulls around 12-13amps atm. I wired in a inline fuse and my plug was in really bad shape. Take a look at that.


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[Oldblueaccord]

http://ww1.microchip.com/downloads/en/AppNotes/00905a.pdf

page 3. Pretty good read on DC motors.


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