Help!! Fans out in ati 8 bulb fixture

I've found replacements online for these fans. Can they be bought locally? I emailed ati last week and got no response. Also my current fans have only red and black wires while the ones online have red black and blue. What is the blue for and would it have to be hooked up?

 

Have you called ATI North America? I called for a new fan plug and had new one in 2 days. Excellent customer service. 303-459-2119

 

Radio shack might have some replacement fans that'll work.

 

If I was closer I would pull the fans off of mine and let you use them till ATI sent you new ones.
I would just get them from ATI. They will be the proper size and will hook right up to fixture with no modification.

 

http://premiumaquatics.com/products/ati-cooling-fan-8x54w-8x80w-sunpower.html
Or if you have a power module or smaller Sunpower there is a different one on their site.

 

I think the blue is for a temp sensor on fans. They are not needed it would work to splice the wires from replacement fan to the existing one.

 

If you can pull one out and take it to a Van Meter (electrical supply) they may be able to find a direct replacement for you. they are usually not to bad on price either.