[RE-wrenches] Midnite AIO Random Unexplained Shutdowns

[Jason Szumlanski]

Hi all,

I have two new systems experiencing random shutdowns anywhere from 48 hours
to 3 weeks apart. The inverters will simply shut off, going into standby
with no power to the loads, and absolutely nothing in the fault logs.
Turning them back on with the master inverter power switch or remotely with
app restores normal operation for some random period of time before it
happens again.

Here are the similarities:

-Parallel inverter systems (3 or 4 AIO)
-Powerflo16 batteries, closed loop comms (80 kWh and 112 kWh)
-Grid interactive systems with netmetering
-Large PV systems with DC Coupled PV on each inverter
-Shutdowns typically happen at night, early morning hours
-Loads are low and nothing out of the ordinary on the load side happening
at the time of shutdown
-Confirmed no errant Neutral to Ground bonds that shouldn't be there
-Proper installation of ferrite rings
-AP Smart RSDs

Differences:
-Two different firmwares (but all firmware per site is the same per
inverter). Updated at different times by Midnite tech support remotely


Has anyone experienced anything like this, and if so, did you find a
resolution?

I have a call into Midnite and hope to make some progress on Monday. I'm
seriously concerned, especially with one site that doesn't have a bypass
(due to space constraints). I can't have these sites going down and cutting
power to the homes!


Jason Szumlanski
Florida Solar Design Group
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20251226/2521a146/attachment.htm>