Fan sounds like a jet engine suddenly. Replacement fan?

I used My lattePanda for a couple months as an always on computer and now suddenly the fan noise is the worst ever. Is there a recommend replacement fan or can I get a replacement fan (Is there a warranty on these things?). Its unusable in my living room as is. Once the fan kicks in every 30 seconds or so and cools the chip for 10 seconds before going off it drowns out everything, even loud movies.... its so loud