Hi Bill, Sounds like an intermittent field effect transistor in the power bridge. I use the Schneider XW guy up in Oregon but I do not know if he works on the old Trace gear. If you strike out, drop me an email and I will find it as I never need him.
They do not last forever and there are a ton of them with various issues on ebay so beware. I just went thru a few with a die-hard old client that would not modernize and bought old spares. He ended up paying me alot of hours for me to say I told you so. It was a really nice drive 4 times.... Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net text 209 813 0060 On Sun, 17 Oct 2021 21:11:04 -0700, frenergy <frene...@psln.com> wrote: > Hey Folks, > > I haven't seen this one until yesterday. Customer with a > 20 year old Trace SW4024 called. I've been servicing this reliable > system for the last 8 years. He said after a delay the power shuts off > when a moderate load comes on after 5-15 seconds, then back on, then > off..... Light loads no problem, the power stays on. The inverter > stays on the entire time (yellow light and that famous audio buzz) but I > hear a relay? inside the left side of the wiring section with each > change of on-off, off-on state. I assume its a repair to a service > shop. Ideas? Recommendations for repair shops? I haven't been getting > a response from the Solar Cowboyz in Grass Valley. > > Thanks, > > Bill > > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049 > solar powered since 1982 _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org 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/re-wrenches@lists.re-wrenches.org/ 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
