Dont know for sure. I think blue. I believe you can check the wiring
diagranm to figure out.Dont think it will matter in your case. The fan will
spin in the opposite direction , but wont matter.Maybe use a refrigerater
fan (from a dumped frig). This will be a bit slower,maybe,(110V?)but wont
really matter.I think this moter will work for along time in a high
humidity enviornment.Do clean out the orifice while you got it out. I used
a syringe that was 60cc. Hooked it up w/ hose clamps and shot alcohol
through it for about 5 minutes. These syringes are avaliable at home depot
I think or southern states. People shoot up there cattle with these.I've
seen them around.I put some window sealing self adhesive strips on the
inside of my frig door, 1/8 X 1/4 inch by about 15 feet.Got a 5 degree
improvement.Be careful replacing the frig. I learned on the list that if
you bend the neck too much , it will crack.I think if you just look at
wrong it will crack.  It wont operate well when you drive after
this.Reseal  the utility openings ans the rubber frig vent w/ silicone.The
van willrust otherwise.