| Isolater vs Alternator [message #326603] |
Fri, 01 December 2017 16:21  |
Ernest Dankert
Messages: 133
Registered: May 2007
Location: Ogden, New York
Karma:
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Senior Member |
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I replaced my 80A alternator with a 100A with dual belt pulley.
In getting the transmission replaced the coach was unplugged and static
for 1.5 months 450 miles from home. During the return trip the 2x12V
house batteries fully loaded the alternator (supposition to fit the fact)
and the 100A alternator toasted the isolater. I know the exact moment as
the dash blower was on high and the blower hit warp drive 9+. Blue smoke
came from the dash and nasty electrical stench. (We were in wall to wall
traffic and could not pull off.) Bypassed the isolater at a pull off so
we had power.
Replaced the house batteries with a 4D deep cycle, replaced the blower motor/fan
assembly, tossed the isolater and now rely on combiner. The blower hi speed gets
its power straight off the alternator tap to the isolater. When the isolater failed
due to overload the sense circuit maxed the alternator.
1977 Eleganza II
Ogden NY
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