Help on coach battery wiring
Hello all,
New to class A motorhomes. I have a 2003 Itasca 34HD and I just replaced the Trojan T105 plus batteries. I was pretty thorough in viewing the batteries wiring with pictures and diagraming them. I have the batteries installed now and went in the motorhome to try the 12 volt systems and start the generator. No go? The batteries are wired in series and I have the 13.6 volts reading. The coach seems to have two 12V sources coming from the, one having a large round fuse placed in the cable, the other comes directly from the coach to the rearward posts. Upon pulling the coach tray out, there was an arc from the battery frame structure and the larger round fuse/link. I immediately pushed the tray back in and took the ground cable off of the chassis. I had to take the cores in, so the batteries were taken out.
The wiring was not really well routed and the large round fuse/link shorted, I think it might have set a breaker off? I found it odd that they had two positive leads going to the coach, one with the round fuse/link and the other one direct no fuse or link. The red wire without the link has a yellow tape band around it. I went over to a friend’s 2005 to view its wiring. It has 3 12volt batteries and simply a ground wire and a red positive wire. Mine has the tow 12volt leads coming in… I sure would appreciate any advice or suggestions on getting this figured out. Pictures would be great too.
Thanks,
Bart
New to class A motorhomes. I have a 2003 Itasca 34HD and I just replaced the Trojan T105 plus batteries. I was pretty thorough in viewing the batteries wiring with pictures and diagraming them. I have the batteries installed now and went in the motorhome to try the 12 volt systems and start the generator. No go? The batteries are wired in series and I have the 13.6 volts reading. The coach seems to have two 12V sources coming from the, one having a large round fuse placed in the cable, the other comes directly from the coach to the rearward posts. Upon pulling the coach tray out, there was an arc from the battery frame structure and the larger round fuse/link. I immediately pushed the tray back in and took the ground cable off of the chassis. I had to take the cores in, so the batteries were taken out.
The wiring was not really well routed and the large round fuse/link shorted, I think it might have set a breaker off? I found it odd that they had two positive leads going to the coach, one with the round fuse/link and the other one direct no fuse or link. The red wire without the link has a yellow tape band around it. I went over to a friend’s 2005 to view its wiring. It has 3 12volt batteries and simply a ground wire and a red positive wire. Mine has the tow 12volt leads coming in… I sure would appreciate any advice or suggestions on getting this figured out. Pictures would be great too.
Thanks,
Bart
