12 volts supply

[Baveux1959]

Here is my situation , we just took possession of our new Jayflight 2019 and I may have a 12 volts problem or not so ..

1- Connected to shore power with the battery connected 12 volts ok

2- Disconnected from shore power with Battery connected  12 volts ok

3- Connected to shore power with battery disconnected    NO 12 volts

Am I wrong to believe that I should get 12 volts from the converter when connected to shore power without having a battery connected to the trailer ?

Thanks for your help guys

 

[Rene T]

Yes you should have 12 volt for lights but you probably won't be able to operate large items like a slideout. Have you checked the circuit breaker for the converter? You should have one dedicated for the converter. If you find one labeled converter, shut it off then back on. It may have tripped.

I see that this is your 1st post since April of 2015. Welcome back. Hope you stick around and join in on discussions.

It may help if you go into your profile and create a signature of yourself telling us a little bit about you.

 

[kdbgoat]

If the converter is wired directly to the battery, and not after the battery disconnect, you won't get any 12 volt power. If the converter is wired to the RV after the disconnect, you should have power. If I were to wire a converter and a disconnect, I would wire directly to the battery so when I open the disconnect, it would kill all 12 volt power to the RV.

 

[John From Detroit]

As Goat said

Some RVs. Mine for example

Batteries----Switch---Everything else including the converter

Some RV's

Converter---Batteries---Switch---Everything else.

THat said I would LOCATE (physically) the converter and check it out .. but there is a quick  check that may ber easier.

When you get to power. Disconnect the battery using the switch. Then wait 1/2 hour and hook a volt meter to the battery.. Take a reading and write it down. Should be around 12.5 or 12.6

NOW.. plug in and wait 10 minutes. Take another reading and write it down  POST. the readings and we can tell you which way it's wired.

 

[Gary RV_Wizard]

Depends on how the specific RV model is wired, but it's fairly common that the "battery disconnect" is actually a total "12v disconnect". The disconnect is basically intended for extended storage use and there is no reason to use with simply because shore power is on. For one thing, it prevents battery charging and you want to keep the charge up at all times (float charge).

 

[Baveux1959]

Ok guys, in conclusion after a lots of reading and talking to a tech ..... I do not have a problem, yeahhhh .... its perfectly normal for my trailer to be that way . The converter needs the battery to do his job....

Thanks to all of you guys for your help, like ReneT says I dont come here often but I know you will be there if I need you

 

[Rene T]

Ok guys, in conclusion after a lots of reading and talking to a tech ..... I do not have a problem, yeahhhh .... its perfectly normal for my trailer to be that way . The converter needs the battery to do his job....

Thanks to all of you guys for your help, like ReneT says I dont come here often but I know you will be there if I need you

Thanks for getting back to us and don't be a stranger.

 

[Baveux1959]

NEW UPDATE 

Actually I had a problem, despite what I've read in many places that I really wanted to believe I was finding illogical to be connected to shore power and not having 12v lights coming on only because I didn't had a battery on board.

So I decided to contact Progressive dynamics to get to the root of the problem or to the absence of problem.

They responded quickly to me email,  with a few question , after reading my answers they told me that I had a problem and that I should get 12v when connected to shore power with a batt. on board or not .

So they sent me a troubleshooting guide, very well done, I found my problem at the first step. One of the 3 fuses involved was not installed correctly, one leg of the fuse wasn't inserted in her slot .... its almost impossible to do if you want to, but hey I was glad to solve this stupid problem

So all is good now and Kudos to progressive dynamics for their assistance in a very timely manner

 

[John From Detroit]

This is why we always ask the make and model of the converter

Progressive Dynamics converters do NOT require a battery be installed.

Some makes do.

 

[Gary RV_Wizard]

The "battery required' precaution is well on its way to becoming an "old wives tale".  I don't know on any converter/charger made in the last 20 or so years that requires a battery to function, but this caution pops up in most any internet discussion where "no battery" is mentioned. Chargers that requires a battery or used it as a filter to improve quality are largely relics from the 70 & 80's. A few persisted into the very 90's, though.

 

[mel s]

Here is my situation , we just took possession of our new Jayflight 2019 and I may have a 12 volts problem or not so ..

1- Connected to shore power with the battery connected 12 volts ok

2- Disconnected from shore power with Battery connected  12 volts ok

3- Connected to shore power with battery disconnected    NO 12 volts

Baveux1959
That's the way it is on my '96 Safari coach.