Disclaimer, I don't have an xr-30 and haven't replaced the fan in one, but fans are pretty simple.
And ecotech for sure didn't design a custom fan for the gen 1 xr30. Looks like it is a 80x80x15mm 12v standard pc fan. You can get those on amazon for cheap. Only thing that may be different is the connector type. A quick look online seems like the xr30 fan is just a simple 2 wire (positive and negative) pc fan. Worst case you may have to cut the connector off the old fan, and connect the wires to the new fan, just so it easily interfaces with the xr30.
The amps on the stock fan is 0.35a. This fan is half that at 0.18a. But it shouldn't matter since the CFM rating, or the amount of air moved, is equivalent.
2nd Disclaimer: I am not guaranteeing the fan below will work. But it looks like it has the same form (80x80x15 w/ standard fan mounting screws) and function (12v and 30+CFM).
