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09-28-2016, 10:00 PM
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#21
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Guru
City: Port Ludlow
Vessel Name: Fiddler
Vessel Model: DeFever 46
Join Date: Oct 2012
Posts: 703
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Bad breaker?
Good point that I forgot to address. I am adding a battery switch so I can shut the thruster off if it malfunctions.
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09-29-2016, 05:56 AM
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#22
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Guru
Join Date: Oct 2007
Posts: 22,553
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" It always has power to the circuit, whether the breaker is open or closed."
DC is very hard on circuit breakers, as the current will frequently create a spark when broken.
Sounds like yours is melted closed , just replace it.
THe DC problem with big DC is a well known problem and why many folks will use a class T fuse in high draw circuits.
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09-29-2016, 09:02 AM
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#23
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,870
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Quote:
Originally Posted by FF
Sounds like yours is melted closed , just replace it.
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That's what we call "throwing parts" at a problem in an attempt to troubleshoot it. Disconnect one wire and if the problem remains, it's not the breaker. $30 plus a trip to the store saved.
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09-30-2016, 05:25 AM
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#24
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Guru
Join Date: Oct 2007
Posts: 22,553
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"That's what we call "throwing parts" at a problem in an attempt to troubleshoot it. Disconnect one wire and if the problem remains, it's not the breaker. $30 plus a trip to the store saved. "
The poster already stated,
"It always has power to the circuit, whether the breaker is open or closed."
What will more "testing " do?
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09-30-2016, 05:50 AM
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#25
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,148
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hard to believe the breaker is being backfed...but possible.
without finding out where power is present through the whole system, tough to figure out which component is faulty.
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09-30-2016, 08:37 AM
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#26
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,870
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Quote:
Originally Posted by FF
"That's what we call "throwing parts" at a problem in an attempt to troubleshoot it. Disconnect one wire and if the problem remains, it's not the breaker. $30 plus a trip to the store saved. "
The poster already stated,
"It always has power to the circuit, whether the breaker is open or closed."
What will more "testing " do?
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It will determine if the breaker is defective. If it's not, replacing it, as you suggested, would be a waste of time and money.
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09-30-2016, 08:39 AM
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#27
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Guru
City: Port Ludlow
Vessel Name: Fiddler
Vessel Model: DeFever 46
Join Date: Oct 2012
Posts: 703
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Quote:
Originally Posted by psneeld
hard to believe the breaker is being backfed...but possible.
without finding out where power is present through the whole system, tough to figure out which component is faulty.
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I had an electrician look at it. No faulty components. The breaker isn't being used. The thruster and the joystick controls are wired directly to a dedicated battery. I need to add a battery switch in case of malfunction.
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09-30-2016, 08:41 AM
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#28
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,870
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Quote:
Originally Posted by drb1025
Yes, it is wired directly to its own battery, with no battery switch. That's why it continues to work with all other battery switches off. The fuse is intact. It has to be the breaker then. Agreed?
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Nope. What is the rating of the breaker? If it's just a 15 or 20 amp breaker in your electrical panel, it's just for the control circuit and contactor. The actual thruster cables are protected by the fuse.
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