Battery not charging 2017 3750FL

[larpamcope]

2017 3750FL Bighorn. Replaced with 2 New charged marine/rv batteries. Still no lights and generator won’t start. Put original battery back in, generator starts. Display on tank monitor shows 4 lights with generator running, no lights when off. Automatic leveler display shows battery at 12.2 down from 12.44 last night. Turned all breakers off and on. Don’t understand why 2 new batteries won’t supply any power and yes they are charged. Sitting in VFW parking lot in Carlsbad NM , any thoughts??? TKS found converter, all 3 fuse look good

 

[danemayer]

The output of the Power Converter goes to both the interior fuse box and to the batteries to keep them charged. The same wire that is used to charge the battery also feeds power from the battery to the interior fuse box.

There is a 12V DC mini-circuit breaker near the batteries that has tripped and needs to be manually reset. Looks for a group of breakers covered by a red rubber boot. One of the breakers with thick wires attached will have a teeny tiny reset button on the end. After pushing that reset button, if on generator power or shore power, the auto-level display will show 13.2-13.6V DC.

For more information on this and more, take a look at our owner-written Electrical User Guide.

 

[larpamcope]

You nailed in Dan , thanks sooooo much

 

[Mrsfish]

You nailed in Dan , thanks sooooo much

you are now an official ‘Dan fan’!! Have been one for years

 

[KyleC]

I'm joining the Dan fan club too... Should we make shirts?





Kyle

 

[larpamcope]

The output of the Power Converter goes to both the interior fuse box and to the batteries to keep them charged. The same wire that is used to charge the battery also feeds power from the battery to the interior fuse box.

There is a 12V DC mini-circuit breaker near the batteries that has tripped and needs to be manually reset. Looks for a group of breakers covered by a red rubber boot. One of the breakers with thick wires attached will have a teeny tiny reset button on the end. After pushing that reset button, if on generator power or shore power, the auto-level display will show 13.2-13.6V DC.

For more information on this and more, take a look at our owner-written Electrical User Guide.

Dan , I found button , pushed it, now should I have felt a click or anything. Thanks Larry

 

[wdk450]

The click noise or feel on the reset button is VERY SLIGHT. You might be able to hear it with a mechanics stethoscope. Being a (retired) electronics technician, my way to visibly see if the breaker is open, and resets by pushing the reset button, is to flip OFF the AC breaker for the converter/battery charger, turn on a couple of inside light switches (If the breaker is tripped - open - the lights should NOT come on), then try resetting the breaker button. If the breaker was tripped, with the battery having 12 VDC at its terminals, then the lights should come on. By DVM measurement of the DC voltage ACROSS the breaker terminals should be 0 volts (closed switch) when the breaker is NOT tripped, and around 12 volts (battery voltage when charger is disabled to ground) with the breaker open. For the last case the switched on lights provide a path to 12 volt ground for the voltage measurement.