Insignia Microwave exhaust fan rattle - fix it, or make warranty call?

[JM0397]

Hey all,
We have a brand new rig and I noticed the exhaust fan in the Insignia micro rattles just a bit - bad bearing, maybe slightly wobbly or bent fan blade, who knows.
Has anyone taken one of these apart before?
If so, how easy?
If I can tinker for an hour or two, it'll be easier than calling Insignia and filing a warranty claim... Which might be the better place to start, anyway.

Thanks!

 

[vallenrn]

We just picked up our 380fl and have the same issue. Sounds like a helicopter is taking off when running it. IF it is windy out the fan really rattles as well.