The #7 fuse is for the relay feed. So, if the relay is clicking, it is getting feed.
Now the relay has the LOAD side . That is fan/resistor feed.
Check outside the fuse box for a 30 amp fuse. It will be somewhere around the fuse box. This is the load protection fuse for the fan motor/motors.
The later ones had this fuse on top of the relay. It is there somewhere between the resistor and the relay.
A year of man. will help for the schematic....