Not many taking a shot at this, Dean.
Here goes
Some details: if your system is stock with a diode isolator, your engine
battery is not charged by the converter/charger (growler), only the
alternator will charge the engine battery. so the problem should be
separate from the coach and Onan battery.
Since you found the current drain was on the auxiliary fuse, the good news
is you only have to look for the stuff connected to this fuse. The bad
news is all most of all the add-on stuff by po'S have been added on to this
fuse and you will just have to search for radios,tv,fan,lights, etc that
are hooked to this fuse. I cannot think of a standard device connected to
this fuse that is usually the problem.. The manual is not much help because
GMC considered this fuse extra or auxiliary. You may have found it by now.
This would be a good time to move everything you find on this fuse over to
the coach battery. The advantage of this is that if something is left on,
it will take down the coach battery which has two ways to get charged, the
alternator and the converter so you can recover while parked and the engine
battery will still be available to start the engine.
gene
>Net- recently my engine battery started going dead as the coach sat for a
few
>days. Pulling the cable loose, I could tell there was an amp draw. Pulling
>the fuses loose, it traces to the Aux Bat 10amp fuse. Where does this go and
>what does it do?I may have a bad battery for the gen set, but my house
>battery is fine. It stays up. My converter/charger doesn't seem to hum like
>it used to but then neither do I. The manual doesn't make any sense for that
>system. Thanks in advance,. Dean Hanson's 73-23
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
Here goes
Some details: if your system is stock with a diode isolator, your engine
battery is not charged by the converter/charger (growler), only the
alternator will charge the engine battery. so the problem should be
separate from the coach and Onan battery.
Since you found the current drain was on the auxiliary fuse, the good news
is you only have to look for the stuff connected to this fuse. The bad
news is all most of all the add-on stuff by po'S have been added on to this
fuse and you will just have to search for radios,tv,fan,lights, etc that
are hooked to this fuse. I cannot think of a standard device connected to
this fuse that is usually the problem.. The manual is not much help because
GMC considered this fuse extra or auxiliary. You may have found it by now.
This would be a good time to move everything you find on this fuse over to
the coach battery. The advantage of this is that if something is left on,
it will take down the coach battery which has two ways to get charged, the
alternator and the converter so you can recover while parked and the engine
battery will still be available to start the engine.
gene
>Net- recently my engine battery started going dead as the coach sat for a
few
>days. Pulling the cable loose, I could tell there was an amp draw. Pulling
>the fuses loose, it traces to the Aux Bat 10amp fuse. Where does this go and
>what does it do?I may have a bad battery for the gen set, but my house
>battery is fine. It stays up. My converter/charger doesn't seem to hum like
>it used to but then neither do I. The manual doesn't make any sense for that
>system. Thanks in advance,. Dean Hanson's 73-23
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
