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Fuse 7 only feeds power to the coils of the aux fan relays... that is why you hear the relays clicking in. BUT the fan LOAD fuse on your chassis is fuse 'D" -16A..check that one.
If that's OK, take a peek at the connection at the dropping resistor behind the drivers side headlamp......

You can also check the low [ a/c] fan by jumpimg the high pressure sw at the drier. The a/c need not be fiully charged for this test.