[RE-wrenches] K1-Open Fault on SMA SB

[Jason Szumlanski]

It's out of warranty. 10 year old SB3300U.

Went out today. Everything checked out on the AC and DC side, fuses, etc.
Looks like a dead duck. Owner went for a new SB3000TL.

Thanks for the feedback everyone!

​Jason

​

On Wed, Jun 29, 2016 at 10:00 AM, Peter Giroux <pgiroux at mindspring.com>
wrote:

> Jason
>
>     Fear not, I have had two in the last year and they were fantastic.
> Sent out new inverters as soon as I sent on the model and serial #'s. K-1
> is not usually fixable so they send out new or refurbed units.
>
>   Apparently it is caused by high voltage on the line side and after X #
> of times the relay just locks open.  Enjoy.
>
> peter giroux
> American Solar
>
> ----- Original Message -----
> *From:* Jason Szumlanski <jason at floridasolardesigngroup.com>
> *To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Sent:* Tuesday, June 28, 2016 12:37 PM
> *Subject:* [RE-wrenches] K1-Open Fault on SMA SB
>
> I'm heading out on my first K1-Open fault code on a SMA inverter. Any tips
> for diagnostic steps and likely outcome? I'm dreading the call to SMA based
> on recent feedback about their customer support.
>
>
>
> ​Jason Szumlanski
>
> ------------------------------
>
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