house/engine-battery drained .

tiffinboy wrote:

etchison wrote:
I run gen and engine first of month,for an hour, the next day I found all batteries discharged ,never has happened before .

Any suggestions -?

How to trouble shoot ?

Always hooked up to shore power.

charger/inverter gone bad?

Thanks for your help.
etchison

which batterys? engine or house or all?? how did u find them dead?
chassis battyery,s are usually not charged through the converter
need a little more info to give educated opinion
note don't leave SP on when running the generator or the enginealso on a side

"Don't leave SP on"
WHY???? There is nothing wrong with doing that. That is why they have Transfer switches. The Chassis system will not cause any problem also. If you think so, then explain why you think so. Doug

etchison wrote:
I run gen and engine first of month,for an hour, the next day I found all batteries discharged ,never has happened before .

Any suggestions -?

How to trouble shoot ?

Always hooked up to shore power.

charger/inverter gone bad?

Thanks for your help.
etchison

which batterys? engine or house or all?? how did u find them dead?
chassis battyery,s are usually not charged through the converter
need a little more info to give educated opinion
also on a side note don't leave SP on when running the generator or the engine

Your transfer switch will automatically recognize the generator as the primary source of power...ie: if connected to shore power and you turn on the generator, the transfer switch will automatically switch from shore power to generator power.

In your case, by being connected to shore power, running the generator, and also running the engine (which is supplying power from its alternator), you may have caused the transfer switch to malfunction so that now when only connected to shore power, the switch may be stuck in generator power; hence, no power getting to the converter to charge the batteries.

If you run the generator and the engine for one hour, I hope you are also turning on the AC units to provide a load for the generator. Also, by just idling the engine, you will be causing more harm to it than good. An engine needs to be brought up to full operating temperature and just idling will not do that. Disconnect from shore power and take the mh for a 15 minute drive.

Ron

If BOTH battery banks are drained, then the possibility of the House (Coach) batteries have no water(electrolyte) in them. Or are extremely low, which means they are toast and need replaced. The chassis are probably maintenance free, but if discharged too many times will lose the ability to hold a charge. You need to verify that YOUR RV charges BOTH battery banks when plugged in. Not all RV's do, and if so, your dual charging system may be malfunctioning. Another poster stated the mirror heat, THAT should never be a factor as if installed correctly, should be on an Ignition circuit only. There is NO appliance on an RV that will discharge a fully charged battery bank in 24 hours. Even an Inverter will not discharge in 24 hours if left ON. Doug

If the rig is always hooked up to shore power, does that mean that the generator is not used to actually power anything when it is run? Or do you disconnect shore power while running the generator?

If it is always hooked to shore power, my guess is that the converter/charger is always on the batteries. If so, I'd guess that the problem is that that converter/charger is NOT one of the newer 3 stage units, but one of the cheaper/older two stage ones that have a tendency to kill the battery over time if just left charging all the time. If this is so, the batteries are truly dead and will need replacement, and I would add a battery cut-off (assuming your converter can be run without a battery) and I'd hook the batteries to a BatteryMinder or BatteryTender to keep them charged and desulphated.

Some of you may have missed the OP statement:

"Always hooked up to shore power."

an hour won,t charge the battery each time you start it it gets a little weaker. check water ,bring to full charge ,buy a battery tender ,about 7bucks at harbor freight.

A switch left on, like mirror heat, or some other 12 volt item that can drain the batteries quickly. A meter can tell you the amount of current drain which should make it easier to find.

Unless you bring the batteries up to 100% SOC, and one hour run time is not likely to accomplish that, you are hastening their demise. Monitoring the comes out of and goes into of you batteries is vital and for that you need either a Trimetric or Vectron battery monitor which can with the right model monitor bot house and chassis battery.
What is the current voltage of the battery bank and chassis battery measured by a VOM at the terminals.

How old are batteries ?