Community Forums

Danny Gayhart · 06-19-2017, 08:20 PM

Where does the inverter get it's source 12v? There are two 2ga leads coming off the house batteries on my 2000 coach. One goes to the booster switch and the other goes to the Mega 200A fuse, which I assumed was feeding the inverter. When I disconnect the 200A fuse the inverter still works? The schematics I looked at in the tech library don't show the inverter. I'm perplexed!

MtnTrek · 06-19-2017, 09:14 PM

Are you on SP (Shore Power)?
An inverter does invert your 12V battery bank to 120V (modified or full Sine) while there is enough reserve.
Most inverters are also multi-stage charger / converters also (via SP, generator) and charge your battery bank and provide 12V system amperage.
Pulling the 200A fuse isolates the house battery bank but may still allow (Pass-through) other 12V circuits with separate fuse(s) or shunts.

Danny Gayhart · 06-20-2017, 07:25 AM

Quote:

Originally Posted by MtnTrek

Are you on SP (Shore Power)?
An inverter does invert your 12V battery bank to 120V (modified or full Sine) while there is enough reserve.
Most inverters are also multi-stage charger / converters also (via SP, generator) and charge your battery bank and provide 12V system amperage.
Pulling the 200A fuse isolates the house battery bank but may still allow (Pass-through) other 12V circuits with separate fuse(s) or shunts.

It is parked (dry) no power. Going over this morning and pulling all lead coming from batteries. Inverter is draining the house batteries.

wolfe10 · 06-20-2017, 07:58 AM

If the inverter is turned off, it should not have a 12 VDC drain.

Yes, in "standby" it will have a draw.

wolfe10 · 06-20-2017, 08:24 AM

If the inverter is turned off, it should not have a 12 VDC drain.

Yes, in "standby" it will have a draw.

Danny Gayhart · 06-20-2017, 08:57 AM

Quote:

Originally Posted by wolfe10

If the inverter is turned off, it should not have a 12 VDC drain.

Yes, in "standby" it will have a draw.

The inverter is turning itself on while in storage, draining the house batteries. I though the only 12v input source for the inverter was the 2ga lead from the Mega 200a fuse, now I find a 4ga lead off the house batteries heading towards the rear of the engine bay also feeding 12v to inverter.

I have studied most of the system schematics in the library and can't find one that shows the inverter wiring!

DrDaveMA · 06-20-2017, 08:58 AM

Quote:

Originally Posted by Danny Gayhart

It is parked (dry) no power. Going over this morning and pulling all lead coming from batteries. Inverter is draining the house batteries.

You can do that, but all you really need to do is pull the negative cable that attaches to the chassis (ground).

Jeeper64060 · 06-20-2017, 10:27 AM

Turning off the house and chassis switches is not doing it for you? On my mid door there is a switch in the step well, and one in the battery compartment - turn those off when storing with no shore power.

DrDaveMA · 06-20-2017, 11:15 AM

Quote:

Originally Posted by Jeeper64060

Turning off the house and chassis switches is not doing it for you? On my mid door there is a switch in the step well, and one in the battery compartment - turn those off when storing with no shore power.

The battery cutoff switches do not remove everything from the batteries, there are still some parasitic loads left. Removing the negative or ground cable from the batteries will disconnect them.

Birddog Pilot · 06-20-2017, 11:50 AM

Danny, when in storage, power cord removed and both battery disconnect switches off; I always place the Xantrex RS 2000 in "Hibernate" mode to assure the least possible battery drain. Of course there are still a few minor items that produce the "Phantom Draw" but those are very minor.
After about one week my Xantrex battery status monitor panel (not the control panel) will show a total of around 55 amps have been used. Without the RS 2000 in "Hibernate" the
total draw will be about 250-300 amps. This tells me that with the inverter just sitting there and not activated to produce any AC power it is still drawing power from the battery bank. The bottom line, without the batteries being completely disconnected it is probably impossible to illiminate unwanted battery drain while in storage.

RVPioneer · 06-20-2017, 11:54 PM

If you turn the inverter off and it is turning itself on, there is an issue that needs to be resolved. I am not certain of the components used on the 2000 model year. Unless it has been upgraded it will not be similar to a Silverleaf equipped 2006. Until the mystery of the inverter turning itself on is solved, you can turn off the coach/house battery switch, disconnect the negative cable or add a separate disconnect switch at the battery and turn off all 120v breakers so the inverter has no need to invert.

The chassis batteries will discharge as well in a few weeks time unless the chassis battery disconnect switch is turned to off as well. A 20w solar panel with a charge controller will maintain the chassis batteries with the switch in the off position.