The chipset was my first thought as well. I've had those begin to do funky things in the past (distant past), but I have no idea where you might find them at this point.
Howie Michaelson On Thu, Sep 24, 2026 at 2:47 PM Jay <[email protected]> wrote: > > > > On Sep 24, 2026, at 5:59 AM, Jay <[email protected]> wrote: > > > > I have to say I’ve never seen that behavior before with it changing > parameters. > > > > I’ve seen many false ags start situations but it’s never shut the > inverter down. > > > > I would try to replace the chip set if you could find one. As I don’t > think it’s the display/buttons that are causing the problem > > > > Jay > > > > > > > > > > > >> On Sep 23, 2026, at 11:40 PM, David Coale <[email protected]> > wrote: > >> > >> > >> Hi All, > >> > >> I have a system with two SW5548 inverters paralleled together. One of > the inverters randomly changes the input parameters and ends up trying to > turn on the generator, and since there is no generator, the system gets a > fault. I have also seen it set the gen to an EQ charge. I can redo all > the settings, but this does not last long before the shenanigans begin > again. > >> > >> I took apart the buttons and cleaned them all, but this did not change > anything. I then took the cover off and cleaned the control board as best > I could and re-seated the ribbon cables. Still no luck. > >> > >> Any ideas/experieance with this? Replacing the inverters with a more > modern version would be very expensive and time-consuming, as the panels > would also have to be rewired. > >> > >> Thanks, > >> > >> David > >> _______________________________________________ > >> List sponsored by Redwood Alliance > >> > >> Pay optional member dues here: http://re-wrenches.org > >> > >> List Address: [email protected] > >> > >> Change listserver email address & settings: > >> > https://lists.re-wrenches.org/mailman/options/re-wrenches_lists.re-wrenches.org/ > >> > >> There are two list archives for searching. When one doesn't work, try > the other: > >> https://www.mail-archive.com/[email protected]/ > >> > https://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/ > >> > >> List rules & etiquette: > >> http://www.re-wrenches.org/etiquette.htm > >> > >> Check out or update participant bios: > >> http://www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > > https://lists.re-wrenches.org/mailman/options/re-wrenches_lists.re-wrenches.org/ > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > https://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/ > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org >
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