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Bill, I've been in touch with Fronius on this. It is listed as a
"low temp" error code. I got sick and the inverter/system is
generating power as it should now so I'm just now following up. <br>
<br>
The Primo 3.8 has been running for 5 years and I'm sure has seen
some cold temps but it was ~ 0F the day I was out there and saw the
STATE 573 error code. I've been in touch with Fronius Tech
support. When they get back with me with an explanation I'll post
it here. The Primo is rated to run at -40F. Fairbanks used to see
-40 in low lying areas a few weeks a year (in the 70's) but seldom
these days. This install is in the hills. They usually are 10+
degrees warmer than town. Anyway, they <u>could have</u>
experienced -40 a time or 2 in the last 5 years but not this year
for sure. <br>
<br>
No reason it shouldn't run at -40 imo. That's why I read the spec
sheets before installing inverters outdoors. <br>
<br>
Thanks, Greg<br>
<br>
<br>
<br>
<pre style="margin: 0em;">Greg,
</pre>
<tt> My Fronius manual goes up to a code 517 but no
"higher". I </tt><tt>assume you're talking about an "IG". The
last Ph # I used for them was </tt><tt>810-220-4414.
</tt>
<pre style="margin: 0em;"></pre>
<pre>Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982
On 3/14/2023 8:11 PM, greg egan via RE-wrenches wrote:
</pre>
<pre style="margin: 0em;">Wrenches,
</pre>
<tt>I'm out of town and trying to help a customer with a STATE 573
error </tt><tt>on a Fronius 3.8 kW inverter installed in 2017. I
looked on line and </tt><tt>could find State codes but no "573".
Customer sent me a photo of the </tt><tt>screen and it's
definitely 573 so not a typo. If anyone has run into </tt><tt>this
before and can provide any guidance that would be great. Also if
</tt><tt>you have a current phone # for Fronius Tech support that
wouldn't hurt </tt><tt>either.
</tt>
<pre style="margin: 0em;">All the best,
Greg Egan
Remote Power Inc.
Fairbanks, AK</pre>
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