Half my coach has lost power

[Jdaniel2509]

I feel like I’ve been thru this before and can’t remember the fix. I replaced all 8 Coach batteries and now a lot of things don’t work. Thankfully the fridge, microwave and tv work but the lights and other things do not. I’ve plugged into to shore power/ cranked the generator and the transfer switch is working. I’ve only found one GFI breaker and that’s not it. What am I missing?
Thanks
Jimmy

[Lt Dan]

Are you sure you have the new batteries connected correctly? You possibly blew a high amperage 12v fuse when you changed the batteries. Your lights are 12v and are totally separate from the 120v outlets, so it sounds like you have a 12v issue.

[Jdaniel2509]

I took multiple pictures and I’m sure they are correct. My water pump, wall sockets, ceiling lights etc…. Are all out

[YC1]

Since you have shorelinene and generator available and still don't have a12-voltolt items working as mentioned by Dan, some pathway has not bereestablishedhed.

That is, some wire or wires were dropped and hiding from you, or a major fuse/breaker has opened, or if you were using a battery switch to isolate while changing batteries it could have failed when being turned on or off.

You need a voltmeter or test light to begin chasing the issue.

Across your new batteries first, then follow the positive wires wherever they lead you

[LETMGROW]

Originally Posted by Jdaniel2509

I took multiple pictures and I’m sure they are correct. My water pump, wall sockets, ceiling lights etc…. Are all out

You have a wire not connected back to where it belongs somewhere. Take a deep breath and start looking at each battery terminal and connection, one at a time, and compare each connection to your pictures.

[HR2004]

check your breakers on your inverter.

[Jdaniel2509]

Thanks all. I’ll start back on it today

[Jdaniel2509]

I have NO explanation for this. I took my volt meter and went to the coach this morning. When I open the door everything is now working perfectly. I never touched a thing. Who knows…!?

[LETMGROW]

Originally Posted by Jdaniel2509

I have NO explanation for this. I took my volt meter and went to the coach this morning. When I open the door everything is now working perfectly. I never touched a thing. Who knows…!?

In this case I would be checking for a loose connection on each and every connection. Perhaps just a slight vibration made a connection which wasn't there before. Give everything a wiggle test. Bad or loose connections can cause heat and heat can cause a fire.