[RE-wrenches] under performing Enphase inverters

[Jason Szumlanski]

I've never installed a M210, but we have had dozens of M190 failures,
mostly within a short period of time after installation but a few older
failures have trickled in lately. On one job with 236 208V M190's, we
have replaced about a dozen. To date we have not had a single M215
failure, including one job with 164 inverters. Anecdotally, it seems
that the M215 is much more reliable. Hopefully that will hold!

 

Out of all the swaps we've done, I've never observed one where the power
output was lower compared to adjacent modules. In almost every case
there was zero AC output or a GFDI fault.

 

And yes, Enphase has paid $150 per swap, although you have to remember
to go through the RMA registration process online. Overall they have
been excellent about honoring the product warranty with few questions
asked. That being said, I do have better things to do than swapping
inverters!

 

Jason Szumlanski

Fafco Solar

 

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Mark
Frye
Sent: Thursday, November 03, 2011 6:23 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] under performing Enphase inverters

 

I have a fleet of 43 - 190's and 39 - 380's.

 

To date I have replace 3 - 190's and 2 - 380's.

 

All have been identified by close review of the display data and
variation in performance relative to adjacent units.

 

Each has been replaced under warranty with a service fee reimbursement
of $150.

 
Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
www.berkeleysolar.com <http://www.berkeleysolar.com/>   

 

 

________________________________

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Marco
Mangelsdorf
Sent: Thursday, November 03, 2011 2:27 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] under performing Enphase inverters

For the first time, several weeks ago, after 40-50 Enphase installs,
we've come across at least two M210s that we putting out consistently
lower outputs than their immediate neighbors.

 

We replaced the two mods first, which made no difference.  Then, in
consultation with Enphase, replaced the M210s.  After replacing them,
the power output was as it should be.

 

Now I've got another suspect system with several underperforming mods
out of (36).

 

Has anyone else had this experience?

 

Thanks,

marco

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20111104/8971b322/attachment-0003.html>