Community Forums

Kelroman · 09-16-2016, 07:29 AM

Having electrical problem,changed house batteries, left rv plugged in with no batteries , installed new house batteries next day, now genie has no battery power to start, some lights in rv work, fridge doesn't work, microwave works, if you unplug shore power! Inverter hums for a min than stops. Not sure how to fix this

okcnewbie · 09-16-2016, 08:11 AM

Always go back to the last thing you did before it stopped working.

You're going to have to separate the different systems and systematically walk through the troubleshooting steps.

With new batteries fully charged you should have all of your 12vdc items working. I might start there. You don't even need the coach plugged in. It's possible the new house batteries aren't hooked up right. Often the house batteries are used to start the genset.

Leaving the coach plugged in without house batteries shouldn't really cause a problem assuming the battery leads aren't shorted to ground.

Triker56 · 09-16-2016, 08:17 AM

House batteries have nothing to do with 120V ac power in your D.
Can you start the generator by pushing and holding the AUX Start button on the dash?

Recheck that all battery connections are right.

Check out Discovery Owners $$ to join.

Kelroman · 09-16-2016, 08:30 AM

I took a few pic of battery cables, I am sure new batteries hooked up right,

okcnewbie · 09-16-2016, 08:55 AM

How many batteries did you take out? Ex. 4 6volt golf cart batteries.

How many batteries did you put back in?

Do you have and know how to use a multimeter?

What voltage are you reading at the batteries, DC panel, genset, etc.?

Kelroman · 09-16-2016, 09:03 AM

I took a few pic of battery cables, I am sure new batteries hooked up right,

Skip426 · 09-16-2016, 10:26 PM

Welcome to iRV2.

Do you have a volt meter and a 12 volt test light ?
Two very important tools for electrical problems , about $30 at Harbor Freight for the two.
If you installed two or four batteries , the first picture below is how they should be hooked up .
There should also be a master fuse or circuit breaker for the 12 volt cables close to the batteries ( with-in two to three feet ) mine are 135 amp , because they have to handle the gen set starter draw.
Do you have separate , converter/charger and inverter , or is it an all in one unit .
Do you have the manuals for the unit?
There should be fuses or circuit breakers on the unit too.
The second picture is the main fuses , located on the frame behind the battery tray on my coach , one for chassis battery systems the other for coach systems.

Info , on this site may be of some help too.

www.marxrv.com/12volt/12volt.htm