We ordered a new fan blade and replaced both grommets. I think the fan blade was actually okay, the grommets seemed larger at the opening that goes on the motor shaft. I think it was them causing the noise. Time will tell. So, far it seems good, I think it sounds a bit noisy, but it may be that the fan is just working better. Temperature seems more stable, I have extra thermometers in there to check temps. Took longer to take everything out, than to do the repair. This is a 2006 model and still works fine, except for that noisy fan. The videos on this website are great!