on 5/9/00 1:10 PM, David Beierl at dbeierl@ibm.net wrote:

At 12:34 5/9/2000, jeff crane wrote: simply unplug disconnect everything
from the circuit and start hooking things back up. When you plug in the
offensive item and the short is reintroduced, the breaker/fuse will open
again. Then you will know what

In this case all the connections are made at once, unless you start pulling
pins out of the switch connector (maybe a good idea).

Actually, the way this circuit is wired, a short to ground in any of the
three motor supply leads would probably blow the fuse in all positions. A
shorted motor would likely do the same. I think your options here are either
physical inspection of the system, or using an ammeter with a
current-limiting resistor (or else an ohmmeter that can measure well below
an ohm, not all that common) to see which path draws the most current, then
use the schematic to analyze the results. A one-ohm resistor would limit the
current to about 12 amps max; a two-ohm resistor would bring it into the
10-amp range of common electronic multimeters, and would let you squeak by
with a 5-watt resistor, although 10 would be better....

Oh my God, I'd be better off sitting in the van chanting  "Ohhhhmmmm..." and
hoping for divine intervention.   I can just see it now: remember last week
when I asked about my fan motor?  Well, does anyone now have any advice on
clearing the charred remains of the interior out of my '90 Westy?  And how
do I get this melted dash board off my fingers, or what's left of my fingers
anyway?!

Thanks.

TJK
--
Todd J. Kaderabek