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Galvanic Isolater Buzzing?
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Aquaholic
#1 Posted : Sunday, July 10, 2011 6:52:03 AM(UTC)
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My isolater starts buzzing when I turn on the hot water heater but not always? Do you guys think this means that I have a problem with my water heater?Think
1979 Double cabin with 440's
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GB49
#2 Posted : Sunday, July 10, 2011 11:18:39 AM(UTC)
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My isolator buzzed when my dock neighbor (2 docks down) had a melted shore cord plug at the pedestal. It caused random buzzing.

Also buzzed when they were welding the marina retaining wall in front of the boat.

I believe the buzzer indicate excess voltage on the ground wire.

I would investigate all wiring for the heater. I have found melted wire/connectors behind the AC switch panel on my boat. New connectors fixed that.
Also check the wiring into the water tank if you can get to it. I think there may be an access panel that comes off the tank that should allow for connection inspection.

If the tank wiring looks good perhaps there is an internal failure of the heating element to the tank chassis.

Whatever the cause, it should be fixed asap.
Voltage on ground is a bad thing for health of boat and humans.

-Karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
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Aquaholic
#3 Posted : Monday, July 11, 2011 4:30:30 PM(UTC)
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Weeeelll, I took the heating element out and found that it was split abot 2" long at the bend. I replaced it with a $14.00 unit and now everything is good in the worldApplause
1979 Double cabin with 440's
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Docsnow
#4 Posted : Tuesday, July 12, 2011 4:00:51 AM(UTC)
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Might B a good idea to re-post this in the tips & tricks thread for future reference so as not to get lost in the archives Think

Norm,

Big BigMs Live On Shame on you
http://www.picturetrail.com/gid23690601 Try it now there's music to listen to while U view the Big M's

http://www.PictureTrail..../index.php?clubID=20726 this one for the Pix club


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GB49
#5 Posted : Tuesday, July 12, 2011 10:54:48 AM(UTC)
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Good deal.Dancing
Case closed!

-K
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
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