wrote in message
...
On Thu, 26 Aug 2010 06:04:53 -0700, Larry Jaques
wrote:

On Wed, 25 Aug 2010 16:46:56 -0700, "Artemus"
wrote:


"Snag" wrote in message
...
Buerste wrote:
Something doesn't work so you take it apart and troubleshoot all the
components. You can't find anything wrong so you put it back
together
and...IT WORKS PERFECT! It has happened to me for forever but what's
going on? My latest is the icemaker in the kitchen refrigerator. I
spent hours and hours finding documents and troubleshooting. No, it
wasn't frozen-up, (the most common fault it seems) the motor worked,
the thermostat checked out, the heater passed muster. The water
valve is OK and all cleaned out. (I've replaced plenty of those in
different units over the years). Of course, I find nothing else that
could cause it to crap out so put it all back together and...it works
just fine. Go figure. I've had hundreds if not thousands of this
kind of thing, I'll bet everybody else does too!

I just went thru a whole damned to hell and beyond day doing just that
with
my wife's car . Never did find anything wrong , but after
unplug-plugging a
buncha connectors it runs again . Damn thing has a PCM that controls
*everything* . Died on her this am on her way to work , and I'm sure
glad
it was close enough for her to walk home !
Still don't know why it died , but it runs now so ...
--
Snag
Wannabe Machinist

An easy to overlook problem is the ground connections. Weird ****
happens
with poor/intermittent/missing grounds.

Oxidized connections at the connectors account for a very large
percentage of computer repairs, too. R&R connector, computer starts
working.


Used to be REAL common with socketed DIP RAM and DIP socketed
processors. Remember when virtual;ly every chip on a motherboard was
plugged into a socket????

My experience is over half the time when someone calls me to look at
equipment that is malfunctioning, it starts to work as soon as I get
within about 50 yards.

That's a different effect -- the "Repairman proximity effect." It usually
occurs just after you've incurred charges for his trip. I had a refrigerator
that worked that way. d8-)

--
Ed Huntress