No house battery power

It has a LYGHT-auto trans switch-LPT50BPD.
With the Generator running, the 12 volt lights do not work.
The SLIDE worked without the engine running or the E-Brake engaged.

Do you know if your motorhome has an Automatic Transfer Switch? This allows the generator to provide 110 power automatically without having to physically connect the shore power cord to the receptacle. With the generator on, do your 12 volt lights work? Also, if you are able to start your generator with the house batteries, then the disconnect switch is working, but maybe the indicator light is burned out. As for the slide out not working, that stumps me. On some motorhomes, you have to engage the parking brake when activating the slides, but I don't know if that might apply to your type motorhome.

I still have no power to the House Battery Disconnect Switch. No
12 volt lights and the slide and steps do not work.
The slide did work without the engine running before.

When going down the road, the inverter switch and the coach battery disconnect switch were in the off position. (no battery drain) The batteries check GOOD.
12.6 volts.
I started the GENERATOR (5500 watt quiet diesel) and the Xantrex XS400 switched from "inverter on" to "AC input". The PRO Mariner Pro Sport 6 turned on to charge the batteries.
The only thing that does not seem to be working is the COACH BATTERY DISCONNECT switch.

After checking all connections to the house batteries, check them with a volt meter. If they are totally dead, running the engine will not charge them sufficiently. Also, because of the age of your motorhome, I doubt it has a BIRD device to allow the Converter to charge the house batteries from shore power or engine power. The only charging device that will give the house batteries a sufficient charge is a regular battery charger.

herbhyde wrote:
I just bought a 35 foot Kodiak Dutchmen. On the way home the steps quit working but every thing else 12 volt was working. later the house lights quit and the slides will not move. I still have 12 volts to the inverter but the Green light for the Battery Disconnect does not come on. I have checked all the fuses I could find and all are good. If I put 12 volts directly to the step motor , the steps will work.

This is my FIRST RV and I out of ideas.

You bought a new motorhome. I suspect you don't know the condition of the batteries when you drove off the lot. The only thing charging your batteries while you are driving is the engine alternator ... if that circuit is working. Sometimes they fail.

I think the first thing you need do is get home, plug your motorhome into some shore power ...even a 20A house circuit will do if you have an adapter ... and without running any other appliances in your motorhome let your motorhome's charger charge up the batteries.

check the batteries after 12 hours of charge to see if everything works again. You may have bad batteries. you may have a problem with the circuit from the engine alternator that charges the batteries while the engine is running. Then again, you may have other problems. good luck.

In some motorhomes, the steps are powered by the ignition switch so that they retract when the motorhome is in motion. These motorhomes also have a switch by the door that you activate so that the steps do not move in and out when parked and the side door is opened and closed. Also, in some motorhomes, the slides only work when the emergency brake is on, and the engine is running. As for the green light on the Inverter, this is not the same as a converter. The Inverter transforms 12 volt into 110 VC. The Converter does the opposite.

Sounds like you just ran out of batteries...

You will have to learn what is needed for the different modes of using things...

Not knowing what batteries you have or what all is running it is hard to say what has happened but it really sounds like you just started running your battery down as you went down the road.

If you was using a POWER INVERTER running from your battery to make 120VAC while enroute will not last very long depending on how many batteries you have in the bank. Most basic things all run on 12VDC so they can run anything you need them getting their power from the battery source. The 120VAC items either need to be hooked to a shore power connection, AC generator, or Power Inverter that runs from your battery. If you were indeed only using a power inverter and only have a single battery you will not get a very long run time as the Power Inverters that are large enough to run 120VAC for many high wattage things will really need many batteries to make them work very long...

I am thinking you may be using the term INVERTER for your CONVERTER/Charger unit. The CONVERTER/Charger unit has to be feed with shore power or an AC Generator to produce 12VDC to charge your battery...

Th eonly way the battery may be charged while enroute is a trickle charge from your truck start battery system and if you have a bunch of 12VDC items on while enroute you can very easily run the battery down. You can only expect around 6AMPS or so of trickle charge coming from the truck start battery system.

Hopefully you haven't hurt your battery yet by discharging it below 50% charge state which is only 12.0VDC and can get it re-charged again and then learn how your new trailer works power source wise.

Just my thoughts with what information I can use from your short statement...

Roy Ken

Start by checking the connections at the batteries. Make sure they are clean and tight.