[RE-wrenches] Enphase Mystery

[Jason Szumlanski]

Hi William,

I'm not sure about your issue, but 99.9% of the time when the level 1
customer service rep says you have a noise issue, just roll your eyes, hang
up, and call back. They love this excuse. They seriously need to train reps
that this is not a catch-all conclusion. I'm happy you finally got it
resolved, but the noise rabbit hole is an annoyingly pervasive pathway for
Enphase customer service reps.

Once I have a resolution, what I usually do is ask them to provide a
detailed technical email that explains the problem and resolution. Tell
them your customer wants an explanation of why the issue occurred. That can
sometimes provide some insight into what happened. Also, don't forget to
check the "System Dashboard" in Enlighten Manager. The logs can sometimes
provide at least some useful information.


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 Tue, Sep 2, 2025 at 11:48 PM William Miller via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Friends:
>
>
>
> I have a project where I installed 36 IQ7 inverters a few years ago and
> then another 12 on a different building about 2 years ago
>
>
>
> On June 6 of this year a few of the 12 micro-inverters stopped producing.
> Over the course of the next 30 days the rest of the 12 stopped producing.
> When I checked on them the 12 were not communicating with the Envoy.
>
>
>
> I went on site and found the power to the string had been on and off
> intermittently due to a bad relay we have in the circuit.  I bypassed the
> relay and the micros would still not produce or communicate.
>
>
>
> I called Enphase and they said there was noise on the power system that
> was causing the problem.  I pondered this for a while and figured the
> micros should not stop producing if the communications went down.  I called
> Enphase back twice and they could not offer a solution.  I tried again
> today and the tech was able to determine there was a setting that when
> changed allowed communications.  He also said there was a low DC resistance
> that indicates an arc fault.  He was able to correct both issues and the 12
> are now communicating and producing.
>
>
>
> The problem is over so I don’t want to put a lot of thought into this but
> my curiosity won’t let me stop thinking about this issue.  I feel compelled
> to write to the list because if anyone experiences this problem they might
> benefit from what I learned.
>
>
>
> Have any of you experienced this?
>
>
>
> William Miller
>
>
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
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