Buy this link you will get one pair of projector fan for above model, a big one and a small one like my pictures.the big one is a COMPATIBLE ONE fan (will fully tested before send out). The small one is original one.This projector use 2 fan.
if fan got noisy or full of dusts, better change them. (beware, color wheel can cause noisy problem also)
The most problem is "FAN LOCKED", usually is small fan problem which I met many times.
Other parts of above projector, please feel free to ask.