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darnellsgarage
Join Date: Nov 2007
Posts: 929
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A/C blows fuse, not too cold
Friend has 1983 911SC in pretty good shape. Whenever he uses the a/c, it will blow the a/c fuse (25 amp). Might do it in an hour or a day or two.
Also, air does not really blow cold. Never been updated, and he is interested in improving if can be done economically. So, has anyone else had a electrical problem - where to look first? And, who has the best experience with an update kit? Cost is not so important as the kit has to be well engineered so that the two of us (non mechanic types) can do it in a day or so.
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don |
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03-12-2008, 10:41 AM
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Throw it on the ground!
Join Date: Aug 2006
Location: Atlanta, GA
Posts: 2,566
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I had the same problem last year after adding a can of freon. Turns out the system was "overcharged". Had system evacuated and recharged with the OEM recommended capacity. No problems since in terms of the fuse. Cooling properly is whole other story
 My fuse was not actually blowing. It would get so hot that it would melt the fuse body, shrink and lose contact. It never blew the metal contact.
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Mark 1987 911 Coupe Granite Green Metallic My Cousin's Wife's Sister's Husband is a Lawyer. |
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03-12-2008, 11:41 AM
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Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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could also be a bad coil on the clutch.
try polarbearinc.com, great people to deal with! he will help you T/S
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86 930 94kmiles [_ _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
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03-13-2008, 03:33 AM
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never ending projects
Join Date: Oct 2003
Location: greensboro, NC
Posts: 671
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Which fuse number is it? I think its far more likely that corrosion on your fuse panel is contributing to an increased resistance that causes the fuse to heat up or even melt. Check out a few posts by fred cook. He separated the evap fan blower I think and did a rewire of his fuse panel to solve a similar problem.
FWIW..... I still don't buy that over charging a/c will blow fuses |
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03-13-2008, 04:30 AM
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Registered
Join Date: Nov 2003
Location: BABYLON,N.Y.
Posts: 1,048
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remove fuse..put short piece of wire with insulated spade connector in each screw connection.install GM syle circuit breaker..25 amp..comes with spade connections to plug in GM fuse box..GM has always used recycling circuit breakers in their a/c units to solve similar amperage surges..will automatically recycle and never be a problem..
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03-13-2008, 05:22 AM
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