More electrical converter help, PLEASE

travlinjayco · 04-23-2011, 04:59 PM

When I hook battery to hot wire coming from 12v fuse panel and ground, I have 12v to all circuits. The battery is furnishing the power. Is this the only wire that goes to the battery and if so is this where the charge to battery would come from. I do not think so, but need advice. When I disconnect battery and hook up shore power, I am getting 120 to converter, but nothing on 12v fuse panel except voltage on reverse polarity. Arcs bad when I check or try to check on 12v. On 120v setting, I get a good bit of voltage, looks to me like around 30. As, said nothing else on fuse panel works, no 12v anywhere. Does the battery need to be hooked back up to the battery wire coming out of fuse panel to enable converter to work. I am doing a re wire on the burn out we bought. Pulling what little hair I have left out. Any advice would be appreciated. I am stumped on this one. Thanks for being so patient and continuing to answer my questions. Jerry

tomwalt · 04-23-2011, 05:14 PM

What kind of RV is this? Was the burn out from electrical fire?

**"007"** · 04-23-2011, 06:30 PM

Your 30 or 50 amp shore line feeds through a transfer switch off transfer switch a feed for 120v will go to load center and other leads to TS will come from Gen.
The converter is plugged into 120 outlet and it supplies 12V to the batteries than the battery leads supply the 12V fuse panel.
You need to identify the positive leads converter, batteries, and 12v positive lead from fuse panel. You can use chassis frame of coach for negative ground for your meter.
Have you read this 12v side of life will help you understand.
More electrical help.

GaryKD · 04-23-2011, 06:41 PM

Hi travlinjayco,

Look at it this way:

1. 120 VAC Shore Power to Converter/Charger to 12 VDC Battery

2. 12 VDC Battery to Inverter to 120 VAC to Appliances

3. 12 VDC Battery to 12 VDC Circuits In The Coach

When connected to shore power #s 1 and 3 are providing power.

When not on shore power #s 2 and 3 are providing power.

I can not help you with the physical wiring.

travlinjayco · 04-23-2011, 07:28 PM

Quote:

Originally Posted by tomwalt

What kind of RV is this? Was the burn out from electrical fire?

The rv is a 31 ft Jayco Jayflight. The fire looks to have started in the kitchen. The wire running to the battery had gotten really hot, melted a track the size of the wire across battery and burned a small hole in filler cap. None of the wiring around the converter has been damaged. My big question is how many wires should go to the hot or positive side of battery. I have only seen one, marked battery and coming out of 12v fuse panel. My big question is does the converter charge through this wire, I feel there should be another wire directly from converter to battery for charging. Hope this helps and thanks a lot for caring.

**"007"** · 04-23-2011, 08:03 PM

The battery feeds the 12v fuse panel when converter is off.
The converter charges the battery from the 12v the fuse panel connections and also feeds the 12v fuse panel when its on..
You will have two one from converter and one from battery to additional battery if 12v batteries and make sure they are positive leads.
Read the links provided.
Here is a simple drawing of converter wiring to DC panel & Battery:
top block left, AC load center, top block right DC fuse panel.

Make sure your pos & neg leads are identified.
When you have a question to ask stay with the same question you already had a answer to your first question.
Your question will move to the top of the list when you repost on your first post.
Makes it confusing for us and you when you post same problem all over the board.

**RV Wizard** · 04-24-2011, 03:21 AM

The fire could be from a shorted 12 + vdc cable to ground. Disconnect the 12+ vdc cable at battery and at 12+ vdc connection at distribution panel. Ohm the cable out from chassis ground and cable. It must read infinity; open circuit. If not then the cable is shorted and must be repaired or more easily replaced with a new cable. If it is open verify that polarity from converter is correct with distribution panel and battery terminals.