Sounds like he has a 24V inverter. What does the serial number tag on the top of the unit say about that verses the silkscreen part numbers on the relay board and computer board(s) under the hood?
Maverick Brown Off-Grid Solar Commander since 2006 Maverick Solar Enterprises, Inc. • Solar Commander Remote Power • SunFlow Systems Cathodic Protection [email protected] 512-460-9825 > On Jul 2, 2022, at 6:42 PM, Jay via RE-wrenches > <[email protected]> wrote: > > Hi all > > A buddy called me with the following problem. > > He was given a 5548 XW manufactured in 2019 that doesn’t work. As best as we > can figure it never worked. Still trying to get that info. > In trying to diagnose, he noticed the transformer is rated at 0-28v and > 0-120vac per leg out. I have photos. > > When he feeds the transformer with 48vac it produces 480vac out. 240vac per > leg. > > But it’s a 48v unit? > > Anyone have a thought on this? Is it possible that the wrong transformer got > put in it? > I know they used to make 24v units? > > Thanks > > Jay > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-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]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-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: http://lists.re-wrenches.org/options.cgi/re-wrenches-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]/ http://lists.re-wrenches.org/pipermail/re-wrenches-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

