![]() ![]() I need help, and I just don't know who to trust. But once you start following the wire toward the starting battery, I get lost and just don't think I can do this myself. I have a general idea of how things should go - from the alternator to the A post on the isolator, and then from posts 1 and 2 to the starting and house batteries, respectively. operate when the house switch is on and do not operate when the house switch is off.) That can't be right! (I know the battery switch on the house battery works, because when I disconnect the wire from the alternator to the isolator, the 12v lights/etc. Once I got home and tested things out with the system my mechanic rigged, everything that runs off 12v power still operates when the house battery is switched off, so the current setup isn't separating the batteries. I was pretty sure this wasn't correct, but not confident enough to argue with him. From what I could determine of what he'd done, he had wires running from the alternator to both the isolator and the starting battery, with the only used posts on the isolator being the alternator running in and the house battery wire running out. ![]() When I picked the RV up, he told me that the RV place had hooked up the isolator incorrectly and it might be the reason the alternator blew. I told them I would have my mechanic do so. They asked if I wanted a mechanic down the road (who they'd called to determine this) to replace it. However, when they called to tell me the job was done, they told me that my alternator was also bad. They also installed a battery switch to turn the house battery off as an added measure. They replaced it with a Sure Power 70amp isolator. A couple of weeks ago, I had an RV repair shop replace my battery isolator, because the current isolator wasn't separating the batteries, and I was told I needed a new one. ![]()
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