HI Jason, I had a neighbor replace his old units under the exchange program. less than 1 month later 1 appeared to die. Tech support said without hesitation it was the panel that died. I got called in and the unit was producing power but comm’s were out. These were the 190’s.
More haggling later ( on my neighbors part) and they got sent a new inverter. Photo with clamp on meter wasn’t good enough, he had to switch a number around to somehow convince enphase. Fortunately they are a tilted on a flat roof, so it was kinda easy, but a total waste of time. I don’t blame the tech support person, I blame the higher ups who tell them what to say, and how to trouble shoot. Muppets Please let us know which versions and I presume that you tested them for output? Jay peltz power > On Nov 1, 2021, at 4:30 PM, Jason Szumlanski > <ja...@floridasolardesigngroup.com> wrote: > > We have a site with 34 microinverters at two orientations. It's a couple of > months old. After about a month a couple of microinverters started acting up > and dropping power production for no apparent reason, then finally started > throwing Device Produced No Power issues and totally sopped producing but > continued communicating. Slowly but surely additional units have dropped off. > Now a few weeks later we have 24 of the 34 units with the same issue. Ten > random units are completely fine. These are on various branch circuits and > both orientations. There is no rhyme or reason to this issue that I can see. > > I have never seen such a widespread failure on a single site (since the M190) > and we are not seeing failures of the IQ7A at higher than usual rates on any > other site. It seems almost impossible that we got a bad batch and haven't > seen a bunch of failures at at least one more site (it's more than a box full > of quantity 18 but less than 36). > > Enphase Tier 2 tech support was no help at all (many many hours on the phone, > on hold, etc, no real answers). It was supposedly escalated to a higher > level, but I never heard back. I finally gave up and just demanded that they > replace them all. I'm concerned that there is something else wrong here and > might be wasting my time replacing 2 dozen units. We replaced two today and > for the last half of the day they seemed to work flawlessly, but for how long > they will continue to work is anyone's guess. > > Needless to say, the client is quite concerned. > > If you have had any similar experiences I would love to hear the resolution. > > > Jason Szumlanski > Florida Solar Design Group > > > _______________________________________________ > 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 >
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