Wow. That is so different from our experience. Again, Enphase has been spectacular about replacements, but we're talking dozens out of the 1000+ inverters we have installed. I wonder if it is an environmental issue. It's hot around here in Florida...
Jason Szumlanski Fafco Solar From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of August Goers Sent: Friday, November 04, 2011 4:03 PM To: RE-wrenches Subject: Re: [RE-wrenches] under performing Enphase inverters We have over 1000 Enphase units installed of multiple types - mostly M210s and M190s. We just had our first overt failure of an M190. It just went dead after a couple of months of operation. I'll keep my eye out for underperforming units but haven't noticed any yet. -August From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szumlanski Sent: Friday, November 04, 2011 6:26 AM To: RE-wrenches Subject: Re: [RE-wrenches] under performing Enphase inverters 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-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@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-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@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
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