Cannot assign Internal Fan/Pump material

[pwilkins]

I am having a problem assigning Internal Fan/Pump material.  At first I thought there was a problem assigning a custom Internal Fan material, but I also tried the default fan materials and they did not work either.

I have never had this problem before and it just started happening out of the blue today.

What might be the issue?  How can I fix it?

[pwilkins · Accepted solution]

Nevermind, I found the problem.  I had assigned two boundary conditions before I had finished assigning all materials.  For some reason this was preventing me from assigning the Fan material.  When I deleted the BCs, I was able to assign the Fan material with no problem.

[Royce_adsk]

Upon further review it was probably fixed by assigning the fluid parts first before you assign the fans parts.