There is no fuse on the FIP. Intex, It is not hard to work on but if you aren't into that, yes the pumps are a bit pricey, tricky, and a bit messy to complete.
If you feel up to it, disconnect the pump wires at the pump and try activating it directly through a 15Amp. It should sing as it turns at a very high speed. That way if the bearings are shot or the impeller is gummed up, the fuse will blow rather than over heating the pump. Often the impeller just gets stuck to the bottom case. But it take special orings to seal it again.
