House Battery

Check the new battery for 12VDC (bad battery?). Double check connections: pos-pos, neg-neg. Make sure that the house battery cutoff switch is ON. Check for 12VDC at the fuse panel.

It seems the most common mistake made in connecting a new battery is to connect the positive and negative wires to the wrong terminals. You can't always depend on the color of the wires to indicate which is the positive and negative wires. If you are sure it is connected right, you will probably want a voltmeter to trouble shoot the wiring.

Check the voltage at the battery, positive post to negative post. If ok there, move along the wires, both positive and negative, one step at a time and check for voltage. When you no longer have a voltage, that's where your problem is.

If you don't have a voltmeter you could use a light bulb with wires connected to it, but a light bulb doesn't indicate polarity.

Before the depression, I did a lot of work on pleasure boat electrics. I found that as soon as there was more than one wire to a battery post, the chances of mis-connection skyrocketed. So, when ever I had the chance, I would re-work the system to be on cable to each post.

So, Look for the loose wire that you forgot to put on the stack.

Matt

So the battery is good, fuses are good and poles are hooked correctly.... still does not power anything. The Coach battery disconnect switch also does not engage. I do have power when plugged or when the generator is on. Just nothing from the battery....Is there some other switch I could be missing?

Did you leave one of the smaller gage wires disconnected when you replaced the battery? Was your previous battery supplying power to the interior lights,
etc.? Is there a reset button somewhere in the battery compartment?

Anyone know where the BCC is in a 2012 Thor Four winds?

What is a BCC?

I was told it is the Battery Control Center.

Mine is under the bed on the passenger side. It consists of the converter, fuses and circuit breakers and the battery disconnect relay. I have never heard it called a BCC but I guess it qualifies. The MH is a 2005 28A.

I have a battery disconnect switch located by the door. Maybe it was accidently actuated???