Used IQ Enphase microinverter warranties

WebPower

Just thought I'd mention that if you buy a used enphase microinverter there isn't any warranty coverage by Enphase for it. The warranty documents explicitly say only warrantied for original installed location. I bought some used ones and some power surges fried a bunch of IQ7s. Enphase wont warranty replace the used ones. They know where they were installed initially and look it up when you do an RMA. You can install and provision them and they'll report and generate fine. So if you do buy used ones, make sure you don't pay a lot! I lost 2 and paid less than $50 each. Its a risk. I've had 19 die over 5 years time from power fluctuations. The Midnight Solar surge protectors appear to be working. With the last 13 that just died in the one event, 12 were on a different branch circuit than the surge protector. Electrically connected to the same panel but through 2 different sub-panels and separated by 200 feet. Wasn't a lightning issue. Nothing else died.

Now if someone knows what I have to do to fix them (cap/transistor?), I'm all ears. They blink red and report frequency and voltage out of spec. Seems to be on the AC sense portion of the board of the IQ7.

Pat

Ralph Day

I don't know why, but I've had 52 first gen Enphase 190watt inverters since 2010...no problems.  I'm on a dead ending utiiltiy supply line, ground mount, just like many around me that have had over 50% replacements.
I do have them at their max voltage (260vac) set by Enphase through the internet.  I did have freq and volt dropouts at the beginning...the line voltage was too high, not enough loads of mine to draw it down.

Fingers crossed.  contract runs another 5 years.