Sam Woodson wrote:
I had the AC fixed, now that the AC is fixed, after running it awhile, the
fuse #17 a 25 amp will start to Melt, then blow.
My mechanic has looked at it all morning. He said he shows a 10 amp
current draw across through the fuse/circuit.
He checked out the blower motor, the control unit, etc. Everything seems to be
fine.
He is taking it to another guy this afternoon that just deals with electrical
car issues. Just thought I'd check with the list first for any pointers.
Thanks,
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Hi, Sam.
Having the fuses "melt" isn't unusual. The connection between the fuse and the
fingers will get corroded (or just lightly oxidized) and that
creates resistance. The fuse then gets hot, gets soft and starts to compress.
The solution is to clean the fuse holder well and the ends of the fuse.
Also, using fuses that have a ceramic body will stop it from melting.
Glen
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Dirty contacts for the fuse -- acting like little heaters so that even though
the current isn't enough to blow the fuse, it still heats up.
Ray
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The fuse unit (receiving part) is actually a spare part at Porsche:
regards
Theo
1992 928gts Midnight Blue
1988 928s4 Cherry Red (Sold in 2006)
The Netherlands
http://jenniskens.livedsl.nl
http://928gts.jenniskens.eu