FWIW. I had the same issue with this "weak spot". I replaced this fuse  along
with the high pressure switch that had a total meltdown when the  compressor
died of old age years ago. I replaced both parts and when I got the  system up
and running the fuse blew after a few days. I felt that the fuse  became the
weak link due to an increase in resistance as the ring terminal  connector had
also gotten hot and began to melt. The solution seemed to be to  remove any
traces of  corrosion and prevent it from coming back. I cut  about 3 mm of the
wire and the melted connector off and used a new connector  that I
soldered/crimped on and then covered all but the contact areas of this  with shrink wrap.
I then cleaned up the area that the connector screws to with a  Dremel tool
and then coated this with a very light layer of Vaseline. So far so  good and I
have the moderate cooling ability of the a/c again. One other minor
improvement for getting the cold air from the rear to the front of the Westy was
adding a 12 volt oscillating fan mounted at the end of the tray/shelf over the
sink/stove area. Works well so I will next hardwire it with a switch and a
connector to remove it out of season.

David Clarkson
1990 Westy (cool running!)
252k

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