Magnum Energy inverters have no capability to send current to the grid (generator) through their inputs. Sounds like BS to me. What is this mystery board that blocks AC current one way?
Larry On Aug 25, 2015, at 11:18 PM, Mac Lewis <maclew...@gmail.com> wrote: Hello wrenches, I've got an issue I'd like to put out there and see if anyone has heard of this before I call BS on a generator tech. We we're upgrading an off-grid site from series stacked stacked Trace 4024 to parallel stacked Magnum 4448 PAE inverters, changing battery bank, adding solar, auto gen start, battery monitor etc. When we arrived, the generator, a Kohler 14 RES was not functioning. It was blowing the crank fuse when you'd try to start it. We left it alone because it wasn't in our scope of work to get it going. The customer had a hard time getting good service on that generator and spent way too much money (25% more than MSRP on a new one) getting this generator fixed. It was pulled out 3 times and worked on by two different generator companies before it was fixed. The owner now says that the second generator tech told him that he had to "add a board that keeps the inverters from back-feeding the generator". He also said that "new inverters do this more than the old ones". Obviously, the owner thinks that we should have known about this. I think its an outright lie by the generator tech to cover his misdiagnosis, but I'd like to hear from others if such a board exists. Anyone heard of or had a problem with this generator? We are Kohler certified technicians and this "board" is news to us. Thanks -- Mac Lewis
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