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Topic: House 12 volt is dead because of audio upgrade? (Read 1401 times) previous topic - next topic
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Re: House 12 volt is dead because of audio upgrade?
Reply #25 –
Quote from: Mbrown1  - 
Hi.  Kinda crazy.  My name is Matt Brown and I was just in Yachats OR last week.  Nice weather.  This is it!  This must be the breaker all are speaking of.  I can only see a switch on the left side in your picture.  When I hold it in, it doesn't reset, hold in place or really do anything at all.  Any thoughts?  Replacement?

Nope, that's the main 12-volt circuit breaker. The 'hidden' breaker is inside the coach, two feet or less away from the battery box, in between the battery box and the Power Center.
The main breaker cannot be used as a switch, the lever only moves when it blows.

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
Re: House 12 volt is dead because of audio upgrade?
Reply #26 –
Just out of curiosity, does anybody know why there are two "main" 12V breakers? There must be a difference in function, but I've never understood what it was. I've never known the outside breaker to trip, but I have seen the smaller inside breaker trip a few times, so that must be a clue.
Andy Baird
2021 Ford Ranger towing 2019 Airstream 19CB
Previously: 1985 LD Twin/King "Gertie"; 2003 LD Midbath "Skylark"
Re: House 12 volt is dead because of audio upgrade?
Reply #27 –
I under stood it to protect the wiring either to the truck alternator or to the converter.

Jon
1994 MB
Re: House 12 volt is dead because of audio upgrade?
Reply #28 –
Quote from: Andy Baird  - 
Just out of curiosity, does any body know why there are two "main" 12V breakers? There must be a difference in function, but I've never understood what it was. I've never known the outside breaker to trip, but I have seen the smaller inside breaker trip a few times, so that must be a clue.
I think it is a code requirement to have one real close to the batteries. The other one is for convenience.
Steve and Jill, Steve posting
1999 26.5 Mid-Bath
Re: House 12 volt is dead because of audio upgrade?
Reply #29 –
That's a bummer! The only other place I can think to look is in the under counter cabinet behind where your power center is located. If the switch, as Larry says, is between the batteries and the power center,  then the switch must be  in the small space between the back wall of the battery compartment and the power center which is just on the other side of that back wall in the 26.5 IB layout. Unfortunately, to see that area you will need to slide the power center out to expose the area behind it.  The instructions for how to remove the power center are in your factory Lazy Daze instruction manual in the section on how to replace the water pump(it is also located behind the power center).  Once you remove the screws that secure the unit to the mounting frame it is a pretty firm pull forward due to the heavy gauge wires attached to the back. Get a firm grip. Also, just like Larry mentioned, there is only the minimum of extra wire slack to work with so be careful to support the unit at the same height as the opening when fully removed so the connections and terminals are not stressed. There is not enough slack to lay the unit on the floor. I truly hope  this elusive holy grail you seek is is back there Matt!
2004 26.5 Island Bed. Gumby
2006 Jeep Wrangler Rubicon
Re: House 12 volt is dead because of audio upgrade?
Reply #30 –
Quote from: Andy Baird  - 
Just out of curiosity, does any body know why there are two "main" 12V breakers? There must be a difference in function, but I've never understood what it was. I've never known the outside breaker to trip, but I have seen the smaller inside breaker trip a few times, so that must be a clue.

The 12-volt, 100-amp breaker is connected to the isolator or relay, in the engine compartment, the other side connected to the positive terminal on the coach battery.
It's there to protect the battery in case the isolator wire is shorted.
All 12-volt battery power to the interior of the coach is routed through the hidden circuit breaker.
RIVA requires all wires connect to the battery's positive to be fused within 2' of the positive terminal.

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
Re: House 12 volt is dead because of audio upgrade?
Reply #31 –
It looks to me like there is an in-line breaker inside the battery compartment next to the main breaker. You've probably checked that as well, but just thought I'd mention it.

David G.
2005 MB
Re: House 12 volt is dead because of audio upgrade?
Reply #32 –
To all.  Larry nailed it.  the hidden relay behind the breaker panel had tripped.  Probably caused when the radio was installed or when i was messing with the batteries  Thanks again to everyone for your guidance. 
MattB
Re: House 12 volt is dead because of audio upgrade?
Reply #33 –
 Glad you found it! I'm still a little unclear. Was the breaker that you are referring to located  in the back of the outside battery compartment or in the space inside the coach that is behind the power control center with the breaker panel? The water pump is also located in that space. Thanks!
2004 26.5 Island Bed. Gumby
2006 Jeep Wrangler Rubicon
Re: House 12 volt is dead because of audio upgrade?
Reply #34 –
I assume we are talking about the coach batteries, not the starter battery.  Where would this "hidden" circuit breaker be on a 30IB?
Re: House 12 volt is dead because of audio upgrade?
Reply #35 –
Hi Matt Brown (1);  Glad you found it finally. It is a resettable circuit breaker, NOT a relay.  That still leaves you the problem, caused by your installer.  Obviously your new stereo is running off of your chassis battery.  The next time you are enjoying your 'tunes' for an extended time, you may not be able to start your engine to 'get out of Dodge'.   I'll point out here that your chassis battery likely isn't a deep cycle battery, and deep discharging it will ruin it in quick order. I've found that car batteries are good for about two or three dumps like that before they become unreliable as starter batteries.   Good chassis batteries are actually more expensive than deep cycle house batteries.    RonB
RonB (Bostick) living in San Diego
Original owner of "Bluebelle" a '99 TKB
Re: House 12 volt is dead because of audio upgrade?
Reply #36 –
Quote from: Mbrown1  - 
To all.  Larry nailed it.  the hidden relay behind the breaker panel had tripped.  Probably caused when the radio was installed or when i was messing with the batteries  Thanks again to everyone for your guidance. 
Still a mystery to me, also, Matt. Just exactly where is this "hidden" relay or breaker. If it's hidden behind the breaker panel, how did you find it? Can you post a photo of it.

Chris
Formerly: 2002 30' IB
Re: House 12 volt is dead because of audio upgrade?
Reply #37 –
Quote from: RonB  - 
That still leaves you the problem, caused by your installer.  Obviously your new stereo is running off of your chassis battery. 

Not necessarily,  the installer may have connected directly to the coach batteries or the coach side of the battery isolator under the hood.  The breaker that caused this problem is between the coach batteries and the LD house fuse/distribution panel.  The OP should remove the ground cable from his chassis battery and see if the radio still works.

Art
Art and Barbara
Settled in Atterdag Village of Solvang
2015-2022 fulltime in a 2016 Tiffin Allegro Bus 37AP
2002-2015 2002 LD MB
Art's blog
 
Re: House 12 volt is dead because of audio upgrade?
Reply #38 –
Good point Art. Certainly a large enough wire, and easy to get to. Power goes through the 100 Amp resettable breaker in the battery box, but not through the 50 Amp resettable breaker going from battery to fuse panel. That explains why the radio worked, but the 'house' didn't. Batttery charger portion of converter not connected of course, but the engine would charge the batteries.   RonB
RonB (Bostick) living in San Diego
Original owner of "Bluebelle" a '99 TKB