[RE-wrenches] Midnite AIO Random Unexplained Shutdowns

Mon Dec 29 19:24:28 PST 2025

All,

This thread has many components that I will try to address.

MNP recommends that inverters *experiencing issues* be updated to V7
firmware, which is available on the service portal. This firmware includes a
 Shutdown Log that can be used to pinpoint shutdown events directly in the
portal. MNP continues to improve firmware operation as wiring practices and
operating conditions are identified that do not follow manual
recommendations. V7 also includes many improvements related to ESS
controls, which have been a source of issues in some installations.

If you are experiencing shutdown issues, please contact MNP support.

MNP is one of the only manufacturers that provides onsite training for
installers. If you are having installation challenges, please let MNP
know—they are happy to train your team. MNP also performs site visits to
help ensure customer satisfaction. Please reach out to the MNP crew if you
need assistance.

During site visits, most inverter shutdown issues have been resolved by
identifying wiring and configuration problems. Many of these involve
improper CT placement and  programming. If you are installing more than two
inverters and the system is grid-tied, you should be using the CT Meter as
outlined in the manual.

Regarding comments about the batteries: MNP has sold thousands of PF16
batteries, with fewer than a dozen damaged during shipping. Once batteries
leave the warehouse and are shipped to the distributor, they are no longer
under the manufacturer’s control. We all know how rough shipping can be.

As with solar panels, installers must inspect batteries for damage upon
receipt. If damage is found, it should be claimed immediately. For battery
warranty claims, MNP requires photos of the battery box, which contains the
battery serial number. If the box is not retained, the process becomes more
difficult. MNP does not ship batteries with holes in the case or with
shifted cells. Batteries are shipped laying on their back, the only way to
shift cells is to drop a 300-pound battery on its side. In short, the
installer has responsibility to inspect equipment and retain packing
materials until inspection is complete.

MNP is *installer-focused*, not DIY, and is fully committed to this
inverter platform. The goal is to build and support the best AIO on the
market. MNP continues to add features and is currently the only AIO that
fully supports lead-acid (LA) batteries. Additional enhancements for
generator support and monitoring are forthcoming.

Please reach out to the MNP team with any questions.

On Fri, Dec 26, 2025 at 7:09 PM Jason Szumlanski via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Yikes. I have two clients with six-figure expenditures, and they have to
> deal with this - in the middle of the night - during the holidays. No fault
> codes. Random events. It doesn't inspire confidence. This sounds like a
> serious issue without a clear path to resolution.
>
> Honestly, I was hoping I did something obviously wrong (which I'm quite
> certain I didn't). Now that I know others are seeing the same issue, it
> sounds like a product/system/software problem. The proposed resolutions
> seem like throwing spaghetti at the wall to see what sticks.
>
> And I was thinking it might just be a parallel system issue, but now I
> learn it can happen with single inverters, too.
>
> Let's be real here. An errant N-G bond or missing ferrite ring shouldn't
> bring down a whole system randomly and without clear reason. The whole idea
> of these systems is resilience. I switched to Midnite AIO in hopes of
> resolving issues encountered with other manufacturers. I'm starting to
> question that decision.
>
> EG4 isn't perfect, but I am having far more success with their gear, and
> no unexplained issues, at least. The Sol-Ark issues are well documented at
> this point, but at least they don't have shutdowns without at least an
> error code to go on in my experience.
>
> I'm also dealing with some damaged on arrival batteries from Midnite that
> they seemingly want to blame on mishandling by my team. Unblemished boxes
> with damaged batteries inside, but somehow we mishandled them!
>
> The disassociation between Midnite Solar and Midnite Power is another red
> flag for me. It makes you wonder...
>
> I hope they realize how serious this is. I love the AIO for so many
> reasons, but my customers won't accept this lack of intial reliability out
> of the box.
>
> P.S. Tyrone privately shared with me that 020700 is working for him. I'm
> not sure why Midnite updated my sites to other firmwares. I'm thinking the
> next step is to try 020700.
>
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
> On Fri, Dec 26, 2025, 6:46 PM Richard Nicol <rich at solartechvt.com> wrote:
>
>> I’ve had the same issue on a couple of sites. Firmware version
>> 20606/20611. I’ve had it on previous versions as well.  Random shut down,
>> no events logged.
>> Really makes for a happy customer! Especially when they are on vacation
>> and away from the house.
>> Tech support instructs to look for multiple N-G bonds, a weak ground and
>> usually they question to ensure ferrite rings for ground and battery are
>> both in the inverter cabinet.
>> Despite having the above in place we have still had the same experience.
>> I was looking forward to loading the newest firmware, but it sounds like
>> others are still seeing the same problem with the most recent version.
>> Hopefully Midnite get this sorted out soon, they don’t assign case
>> numbers so I don’t think they have tools in place to track the frequency
>> and commonality of reported issues.
>>
>>
>>
>> Sent from my iPhone
>>
>> On Dec 26, 2025, at 2:24 PM, Jason Szumlanski via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>> 
>> Thanks. I'm not sure exactly what you mean by V7 update, but one of the
>> two sites is on Master DSP 0207G7 and CSB Version 207G6. The other site is
>> on 020606 and 020611, respectively.
>>
>> Same exact problem, two different firmware versions...
>>
>> On both, I did the whole process step by step (except I was told 10
>> minutes shutdown).
>>
>>
>> Jason Szumlanski
>> Principal Solar Designer | Florida Solar Design Group
>> NABCEP Certified Solar Professional (PVIP)
>> Florida State Certified Solar Contractor CVC56956
>> Florida Certified Electrical Contractor EC13013208
>>
>>
>> On Fri, Dec 26, 2025 at 2:36 PM Tyrone Houck via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>>> I recommend doing the v7 update and following the installation tips pdf.
>>> With parallel inverters do the update onsite and clear the data/5 minute
>>> shutdown per  recommendation.  With single inverters it works fine remotely
>>> if you can keep internet on(I've just had the customer put it in bypass
>>> until the update was finished). V7 also includes an arc fault firmware
>>> update. V7 firmware has appeared to fixed this issue at the sites I've had
>>> issues with. I have yet to have an unexplained shutdown at any of my sites
>>> on v7. Hope that helps. It sure has helped me sleep better at night!
>>>
>>>
>>>
>>>
>>> On Fri, Dec 26, 2025, 9:22 AM Maverick Brown via RE-wrenches <
>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>>> I have the same issue, but a single inverter installation. It happened
>>>> a few times at night.
>>>>
>>>> No log entry.
>>>>
>>>> Tech support suggested upgrading to version 7. I asked for release
>>>> notes. I haven’t upgraded yet, I haven’t had time to go babysit it for the
>>>> customer. I’ve been trying to train the customer to do it himself. (bypass
>>>> mode, standby, etc. I did install a bypass switch and I also installed a
>>>> bluetti battery on the router.)
>>>>
>>>> Release notes would be nice.
>>>>
>>>> Thank you,
>>>>
>>>> Maverick
>>>>
>>>> Maverick Brown
>>>> Off-Grid Solar Commander since 2006
>>>> Maverick Solar Enterprises, Inc.
>>>>  • Solar Commander Remote Power
>>>>  • SunFlow Systems Cathodic Protection
>>>> maverick at mavericksolar.com
>>>> 512-460-9825
>>>>
>>>>
>>>>
>>>> On Dec 26, 2025, at 10:53 AM, Jason Szumlanski via RE-wrenches <
>>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>>
>>>> 
>>>> 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
>>>>
>>>>
>>>>
>>>>
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