Converter Issue????

[hmspktr]

New Batteries fully charged.
All fuses are good.
All breakers on.

When I am on shore power or generator running, all things 12V work.

When I disconnect shore power batteries are not taking over to power 12V lights, In-Command, etc. Slides and jacks obviously do not work.

Any clues?

2020 Fuzion 419

[chuckster57]

Welcome to the forum

Without any specific trailer information its hard to say. Start at the battery(s) is the disconnect in the correct position?

When you put the new battery(s) in did you maybe hook them up wrong if you so much as touch the trailer lead to the wrong post you will blow the reverse polarity fuses.

[hmspktr]

Originally Posted by chuckster57

Welcome to the forum

Without any specific trailer information its hard to say. Start at the battery(s) is the disconnect in the correct position?

When you put the new battery(s) in did you maybe hook them up wrong if you so much as touch the trailer lead to the wrong post you will blow the reverse polarity fuses.

2020 Fuzion 419

[hmspktr]

Originally Posted by chuckster57

Welcome to the forum

Without any specific trailer information its hard to say. Start at the battery(s) is the disconnect in the correct position?

When you put the new battery(s) in did you maybe hook them up wrong if you so much as touch the trailer lead to the wrong post you will blow the reverse polarity fuses.

Yes, disconnect is in correct position.

[hmspktr]

Originally Posted by chuckster57

Welcome to the forum

Without any specific trailer information its hard to say. Start at the battery(s) is the disconnect in the correct position?

When you put the new battery(s) in did you maybe hook them up wrong if you so much as touch the trailer lead to the wrong post you will blow the reverse polarity fuses.

Batteries were installed correctly and nothing touched when installing.

[bobbecky]

If your converter was bad, you would not have 12 volt power when on shore power. This could be either the battery disconnect switch is open or could be the auto reset breaker has failed. If the slides and jacks don't work, I'm betting the auto reset breaker is the problem.

[chuckster57]

Originally Posted by bobbecky

If your converter was bad, you would not have 12 volt power when on shore power. This could be either the battery disconnect switch is open or could be the auto reset breaker has failed. If the slides and jacks don't work, I'm betting the auto reset breaker is the problem.

I agree, I was working on a car and just now got back to this. I would use a Volt meter and start at the battery. IF it reads 12VDC+ then using the meter test for 12V using the positive post of the battery and the frame as ground.

If you dont get 12VDC, then follow the positive battery lead and test both sides of whatever its connected to.

[hmspktr]

I think you may be correct. Any way to test them to see which one is bad? I appear to have multiple in my battery area.

[chuckster57]

Originally Posted by hmspktr

I think you may be correct. Any way to test them to see which one is bad? I appear to have multiple in my battery area.

Start with the one the Battery goes to. Test using a Volt meter set to DC volts. Positive lead to the wire and negative lead to frame. TEST BOTH SIDES

[hmspktr]

Originally Posted by chuckster57

Start with the one the Battery goes to. Test using a Volt meter set to DC volts. Positive lead to the wire and negative lead to frame. TEST BOTH SIDES

I did just that and evidently something happened while I did that and now I have power on 12V only. Maybe something caused it to reset? Now I just need to disconnect the batteries and make sure they're being charged, because I discovered they weren't, while I was doing all this troubleshooting.

Thank you, gentlemen for the advice!!

[chuckster57]

Just plug into shore power and measure the voltage at the batteries. 13VDC or better is what your looking for.

[GlasNav]

Originally Posted by hmspktr

I did just that and evidently something happened while I did that and now I have power on 12V only. Maybe something caused it to reset? Now I just need to disconnect the batteries and make sure they're being charged, because I discovered they weren't, while I was doing all this troubleshooting.

Thank you, gentlemen for the advice!!

Almost sounds as if you don't have a solid mechanical connection at the battery post or terminals. Battery cable connections need to be tight, and no insulators to inhibit the connection.....

[hmspktr]

Originally Posted by GlasNav

Almost sounds as if you don't have a solid mechanical connection at the battery post or terminals. Battery cable connections need to be tight, and no insulators to inhibit the connection.....

Everything was tight with no insulators.

[GlasNav]

Intermittent problems are the most difficult to trace. Hope nothing is arcing if a rodent chewed on the wiring somewhere. Be safe!

[hmspktr]

Originally Posted by GlasNav

Intermittent problems are the most difficult to trace. Hope nothing is arcing if a rodent chewed on the wiring somewhere. Be safe!

I'm confident it was an auto reset breaker in the battery compartment. I definitely will buy some spares and keep I the trailer.

Thank you!! Be safe as well out there!!!

[rhagfo]

Originally Posted by hmspktr

New Batteries fully charged.
All fuses are good.
All breakers on.

When I am on shore power or generator running, all things 12V work.

When I disconnect shore power batteries are not taking over to power 12V lights, In-Command, etc. Slides and jacks obviously do not work.

Any clues?

2020 Fuzion 419

If you have 12 volts battery positive to frame ground, my money would be o the battery disconnect switch, either bad or not in the correct position.

[sourdough]

Be sure to double check that disconnect switch just for grins. Put a meter on it and you can either look for battery if you leave it connected or just disconnect power and look at ohms. I had an issue with one that left me 12 volt less off and on and when I finally checked the disconnect switch it was hit and miss if it connected, stayed connected etc. Bought a replacement at TSC (closest place) and all was well.

[flybouy]

Check the battery ground connection to the frame. They are typically connected to the frame with a self taping screw through the ring terminal. Remove it, check for rust/corosion and clean or replace the cable if it can't be cleaned thoroughly.

[bobbecky]

The rig being a 2020, the wiring from the battery(ies) should be #4 strand copper, and if so, check the auto reset breaker that has a cable to the reversing switch on the hydraulic pump. That will be the breaker that is the problem and is likely to have a second cable on the load side that goes to the inside electric panel. If the breaker is not an 80 amp breaker and the cable is #4 copper, you can replace it with an 80 amp breaker. That is from Lippert as a recommended upgrade because they know that Keystone and other manufacturers have been using 40 or 50 amp breakers, and they fail because the hydraulic pump motor regularly pulls 70 amps when the pump is operating. They wire the second cable on the load side of the breaker and that is the one that connects to the inside panel and if the breaker trips, or fails, then you lose the connection for the batteries.
https://manuals.heartlandowners.org/...ippert0058.pdf
The photos are of my installation of the 80 amp breaker that replaced the one that is like the one on the right side. Then, an 80 amp breaker and a 50 amp breaker that is what is under the red plastic insulator cap in the photo.

[WDPatterson]

Originally Posted by hmspktr

Everything was tight with no insulators.

What kind of voltage do you have on your batteries when they are completely disconnected?