I know this thread is older, but I thought I would give update.. OSI
http://www.oceanstarinternational.com/index.htm
the manufacturer of my chiller, I contacted them directly VS via the LFS. They were GREAT to deal with very easy.. they provided me with a new fan assembly, at NO cost, except for $20 USD for shipping (which i thought was not bad for the fact the chiller cost me $650++ CAD at my LFS)
I would definitly recommend these guys for standing behind their products!
Sarah