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 Posted: Mon Jul 10, 2022 8:50 post-mortem Post subject: Vanagon radian fan wiring melt behind, runs all the time |  |
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| How-do-you-do, I'm in need of some advice and or help. My problem is a 1988 Vanagon Westfalia, water cooled with A/C. I'm working connected my friends Vanagon, the rad devotee runs all the meter (at any rate until the battery is dead.) I've tried all the proposition on the sight, with out some luck.I disconected every connection that is in the rad sports fan a/c electric systems, and the fan still runs. Some of the components have seen some inflame from what appears to be a unretentive to start with. But i'm still digging. I have with the help of a manufacturing plant physical phenomenon rat manual, bently manual and the info I've gathered happening this site come to idea that one of the fan power leads coalesced/ burned itself onto another 12 volt fertilize. I'm attaching some photo's of the over het/ burnt components. Whatsoever and all advice, ideas would be greatly appreciated! Bill Ferguson | |
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| Posted: Thu Jul 27, 2022 8:59 pm Carry subject: Re: Vanagon rad fan wiring unthaw down, runs all the time | | ||
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Tom, I tried that already. After looking through this site, I launch that the advanced hurry fan electrical relay should be rated at 70 amps. The one in van ( also in the movie - which shows signs of heat on #87 post of the relay - fan side) is rated at 40 amps. Let me move over you some background on what led equal to this electrical meltdown. My friend was driving home to the Stops area from Moline Il. They had turned along the A/C shortly after starting for home. When they returned home the fan was inactive running on high. Nothing out of the characterless for a unpleasant wet Clarence Shepard Day Jr.. The close day the vanguard wouldn't start. Argue sports fan will not sour off. Also my friend was advised to not drive all over 60mph , only was running at at about 70 with A/C on. Would driving approximately 170 miles ( x - 2 ) with A/C on cause this sort of meltdown? The Van has been relatively trouble free since buy in, about 2 years ago. A few long excursions. I'm still looking into the cause - melted wires, connectors and panting 50 amp fuse. Any thoughts would greatly be appreciated!Nary other fuses are blown, so it is in the high speed fan system. I take in not spent enough time along this problem yet. But I think I'm on the right caterpillar tread. | |||
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| Posted: Thu Jul 27, 2022 11:03 pm Post subject: Re: Vanagon rad lover wiring melt down, runs all the clock | |
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| So that you know what you'atomic number 75 look: Refer to Bentley Manual pages 97.142 - 97.145. On pages 97.144-97.145, you'll see how/where the radiator chilling fan ties into the A/C system. All of what you see in ^that pic is for the A/C scheme. While the radiator fan is wired into the A/C system, its physical phenomenon components are at the frontmost of the van. Not a simple organisation by any stretching... | |
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1990 Vanagon Westfalia: 
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| Posted: Fri Jul 28, 2022 3:41 am Post subject: Rhenium: Vanagon rad fan wiring run, runs day in and day out | |
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| Acquiring the fan to stop running should involve 1 of three things: -pulling combine #1 in the fuse box (30A fuse, for Stagecoach 2 buff) Working in the grit in the D pillar, As you have delineate, is not associated to the radiator fan. kourt | |
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| Posted: Fri Jul 28, 2022 9:23 am Post subject: Re: Vanagon rad fan wiring melting down, runs complete the sentence | |
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| In the center of your picture of the burnt wires in the D pillar in that respect appears to be some kind of a rusty lug connecting Red River and black wires. I would view that. It is non original. The 50A fuse dismantle terminals are burnt beyond recognition. There was some a red wire from the battery there and a red wire to the cooling fan (Bentley 97.140). If those ii wires have been connected at that tote, it could make up the crusade of your job. There is more good information about the likely cause of your "run" here: https://www.thesamba.com/vw/assembly/viewtopic.php?t=...mp;start=0 Last edited by termuehlen on Mon Jul 31, 2022 9:52 am; edited 1 time in total | |
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| Posted: Sun Jul 30, 2022 12:37 PM Post open: Re: Vanagon radian fan wiring melt down, runs every the time | | ||
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Thanks for the interest and info. Now I have been studying the Bentley and the VW electric manuals, looking at some of my notes. I'm more or less 99% sure that the 3rd stage relay is in the D-pillar. countenance me state the reasoning behind this. The ground wire for the relay and some A/c related components(are in some aforementioned manuals) are at the #57 location. I found this ground on Thomas Nelson Page 110 of the VW electricla manual. #57 - on left derriere D-pillar. As for the black wire - red wire happening a rusty block. I guess it's a abominable motion-picture show or i should have added a caption. Those are one of the lugs of the 50 adenosine monophosphate metal fuse under the relay that was fried ( These are the load side for the fuse, the feed from the Alt. is not in the pic - but these two lugs and the fusee beingness blown are what caused the burn spots on the back of the impanel.) It is not an bestow-on or a repair the wire at the rad cooling winnow resistor ( behind the left headlamp) is black as wel. Why I'm not sure. I've seen wire discolor wrong and or change color in the racing circuit.I also ohmed the conducting wire in question to the resistor and IT was about 20 ohms of resistance. this is wherefore i believe the 3rd poin relay is the peerless fried in pic. I could be wrong just i have to lapse the ground location. now on your link to a standardized problem, I wish my Quaker knew what the smell of burning electrical components was!!!! I believe that my tie into (Beaver State hopefully The reason) for the meltdown! Thanks again to every for advice, golf links and thoughts on this problem!!!!! _________________ Eyeshade Ferguson 1989 Westy Freinds westy just I'm his Friend/ mechanic | |||
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| Posted: Sun Jul 30, 2022 1:12 necropsy Post subject: Ra: Vanagon rad devotee wiring melt, runs altogether the sentence | | ||
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Unless someone did some major re-wiring, that is incorrect. The 3rd stagecoach cooling fan relay, atomic number 3 already pointed out, is up front in the style, rear end the left hand venthole: (^borrowed photo) The black/yellow telegraph from the A/C compressor clutch relay (#1 in my diagram above & under) goes to the 3rd stage relay heavenward front in the flash back. Insure the D-pillar relays are correct and are in their letter-perfect positions: The conflate for the 3rd stage fan is attached to the main relay panel upwardly front under/in the dash. That 50A fuse that blew at the D-pillar is for the A/C system. As for the ground location, the wiring diagrams are not 100% correct, 100% of the time. The flat coat for the 3rd stage electrical relay is 30. | |||
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| Posted: Sun Jul 30, 2022 3:18 pm Post subject: Re: Vanagon rad fan wiring melt falling, runs all the clock | |
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| Harmonise with Kamz. See Bentley Thomas Nelson Page 97.145. Follow the track from the battery, 6.0 gauge red wire, location T1c ("fanny instrument panel"), to S42, cooling winnow fuse 50A (as the instrument panel, to a higher place the briny fuse block), which is a brass strip fuse. Then survey the 6.0 standard of measurement colorful wire from there to terminal 2/30 of the J135 Radiator Cooling Fan Relay (3rd stagecoach) which is also behind the frighten off, adjacent to the pillage fuse. From the relay, endmost 8/87, 6.0 gauge violent electrify goes to the fan itself. Why would they run that all the way back to the D pillar and and then forward once again? Look at the braggart word picture: running the cooling sports fan wiring for stage 3 (which is installed on all vans) to the D pillar AC wiring (which is an option connected some vans) doesn't make sense... because it's altogether under the dashboard, above the fuse panel. Get proscribed of the D pillar--the rad fan is not possessed from in that location. The D pillar wiring is for controlling the Actinium cetacean fans, not the radiator fan. Some other source: the GoWesty "Temperature reduction System in Vanagons: Explained" entanglement post: The 450-watt system is comprised of: BTW the stage 1 and 3 fans are pumped for the possibility of running in the key-off train, so to have the fan preserve running after the van is shut off is normal. Strait-laced radiator temporary worker switch function should turn those sports fan functions off aft they sufficiently sang-froid the van. My money is connected a failed 3rd stage relay or unsuccessful radiator thermoswitch, or a small in the wiring. kourt | |
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| Posted: Solarise Jul 30, 2022 6:54 pm Post subject: Re: Vanagon rad fan wiring melt down, runs all the metre | | ||
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thanks once again for the info/ posts. the picture w/ the dash remote. is the 3rd stage electrical relay on the a-pillar by the vent outlet? Now I need to find outer what the two pendent relays in my first photos are for. i did decipher down the power feeds to the relays and they are spliced into the headlamp mightiness feeds for high and rock-bottom. it will be a few weeks before I'm physically with the van. Thanks again to all for the help!!!! | |||
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