No 12 volt

[jpinchin]

Does anyone know why we would not have 12volt,at all none even when we are plugged into shore power, 2001 Dutch Star 38 ft Diesel Pusher, thanks

[LJowdy]

Your message is cryptic at best? Unless your batteries are totally disconnected then your coach is receiving 12 volts to operate the various components within your coach, lights, motors to operate slides, toilet etc etc.

If your question is why your coach isn't charging your batteries then check your inverter.

[David D.]

I had a 2000 Dutch Star and there is no inverter. You coach has a converter which converts 110 power to 12 volt , it is probably out that is where I would start looking. It is probably located in the electrical bay. Hope this helps.

[TonyDi]

Is this the chassis batteries, the coach batteries, or both?

[nothermark]

Storage switch? Failed batteries popping the breaker or fuse on the converter? Blown high current fuse in the supply line? There are probably more reasons it could happen. Time to pull out a meter and start checking what you do have. Let us know what you find out and someone will probably have a useful suggestion.

[jpinchin]

I have tried to attach some pictures, we have no 12 volt at all, it doesn't matter if we are plugged in or not, no lights, hot water, fridge etc. the battery disconnect intelletic bd1 has nothing, we have checked the fuses that we know about, I don't know how else to describe it,thanks

[wa8yxm]

First: Find your HOUSE batteries and lay the old DIGITAL volte meter on 'em While plugged in

12.6 volts or less (less than 13) means they are not being supported by the converter.. NOTE: this may or may not be a problem but it leads to other steps

13.6 (over 13) or more means the converter is connected to the Batteries and working (The next step you see)

Now look for a switch, it may say AUX or it may say USE/Store, or .. Well they come up with inventive ways to label it.. IF you have an INTELLETEC battery control system it will say USE/STORE and may have a digital display near it and a light (Small round and red) on the panel.

Press USE.. You should hear a CLUNK.. if not press STORE. If you hear a clunk I have a clue (This actually happened to me)

But Well.. now to what happens if hte battery voltage is below 13

Still try that switch, it will connect the battery, But your converter is not converting either

On my, and I suspect most, RV's with a CONVERTER instead of an inverter the converter is on the HOUSE side of the battery disconnect.. If this is the case and the switch is off the battery voltage will remain below 13 volts (why it's not bad)

Now there are 3 common problems with converters, plus one expensive one

1: Tripped 120 volt breaker, Or no 120 volt to RV or only partial 120 volt to RV (more on that in a bit)

2: Blown fuses. >The converter has one or more "Reverse Polarity" fuses. these can blow or fail For example a brand new or nearly so battery, if run down far enough, can suck enough amps to blow them in some cases.. Or a short can do it. Failure.. I've had fuses fail from old age.. Many times.

3: In my case the converter is a plug in model.. And I'm sure you can thus guess what the 3rd failure (most common in this RV) is.. Thankfully since I usually figure it out long about 3am I have an Inverter/charger that normally sits with the charger disabled (See comments) and I jsut enable and plug in next day when I'm dressed for outdoors.

Partial 120V.. There was a thread here recently about partial power in a 50 amp RV.. Seems one side of the park 50 amp breaker tripped.. The other side did not.. MOST folks think these breakers are tied together internally so that if one trips the other does as well. THIS IS NOT TRUE just the handles are tied together. It is very possible for one side to trip, but not the other.

Comments: I like the programming in my converter better than the charger program in the Inverter. SO I use it and hold the inverter in backup.

OH, the Inverter hooks DIRECT to the batteries, it does NOT go through the disconnect switch.

[jpinchin]

We have no 12 volt to the battery disconnect intellect in , no lights no capability of hitting use, store, read volts

[nosticks]

Get a hand held volt meter. Cheep at home depot in the electrical dept. Do tests as stated above. Don't rely on any voltage reading panels that came with your coach. If you can't do or do not know how to do the tests, find a friend that does. Taking the coach to a repair center to diagnose an electrical problem will empty your wallet so fast that the leather will smoke as the $20 bills fly out.

[dennis45]

Originally Posted by jpinchin

We have no 12 volt to the battery disconnect intellect in , no lights no capability of hitting use, store, read volts

In your photo, the heart monitor shows 13.5V and an AC fault light. Have you checked the voltage at the batteries?
Your electrical bay photo shows two solenoids, the larger one is the house battery disconnect which is controlled but the Use/Store button. When you press Use, it energizes that solenoid to supply power to the house. Have you checked there for 12V?
The smaller solenoid is the BIRD which controls the charge voltage from the inverter to either the House batteries or the Chassis batteries. Do you see any voltage across that solenoid?

[dennis45]

When you are plugged in to shore power, do you have 120V power? Do you have 120V going to the Heart?

[jpinchin]

Originally Posted by dennis45

In your photo, the heart monitor shows 13.5V and an AC fault light. Have you checked the voltage at the batteries?
Your electrical bay photo shows two solenoids, the larger one is the house battery disconnect which is controlled but the Use/Store button. When you press Use, it energizes that solenoid to supply power to the house. Have you checked there for 12V?
The smaller solenoid is the BIRD which controls the charge voltage from the inverter to either the House batteries or the Chassis batteries. Do you see any voltage across that solenoid?

We have 12 volt to the larger one, a jumper on the smaller one, put no power to the use/store button, yes we have 120 volt

[dennis45]

Originally Posted by jpinchin

We have 12 volt to the larger one, a jumper on the smaller one, put no power to the use/store button, yes we have 120 volt

What's the reason for the jumper?

[jpinchin]

Originally Posted by jpinchin

We have 12 volt to the larger one, a jumper on the smaller one, put no power to the use/store button, yes we have 120 volt

No 12 volt to the fuses in panel in bedroom