AU HVAC query?

[b2tf]

Hi all

can anybody confirm if the HVAC unit in the AU's is a sealed unit? I am looking at an AUII Pursuit ute which has a rattle in the A/C fan, initially I thought it was just a leaf or something like they all get from time to time but I have been told it is actually something in this unit that needs to be replaced. I am not too clued up on these parts so I'm wondering if anybody knows - I am being told it i a dash out job to fix and will be around $1k with labour.

Any ideas?