The fix in Post 2 was for the BLOWER fan, not the Aux fan in front of the condenser.

Running amps for the condenser fan should be 8-10 amps. The fact you've swapped fans with a brand new one and are still blowing the fuse means you have a wiring fault somewhere. How is the fuse blowing, dark window and ragged edges of the fuse element? If so, that's a short-circuit. Typically overloads will have a smooth rounded edge of the fuse element where the element simply melted.

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]