[RE-wrenches] Fronius Primo 3.8 with state 573 error code

[greg egan]

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.

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 _could have_ experienced -40 a time or 2 in the last 5 years but 
not this year for sure.

No reason it shouldn't run at -40 imo.  That's why I read the spec 
sheets before installing inverters outdoors.

Thanks, Greg



Greg,

             My Fronius manual goes up to a code 517 but no "higher".  I 
assume you're talking about an "IG".  The last Ph # I used for them was 
810-220-4414.

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:

Wrenches,

I'm out of town and trying to help a customer with a STATE 573 error on 
a Fronius 3.8 kW inverter installed in 2017.  I looked on line and could 
find State codes but no "573". Customer sent me a photo of the screen 
and it's definitely 573 so not a typo.  If anyone has run into this 
before and can provide any guidance that would be great.  Also if you 
have a current phone # for Fronius Tech support that wouldn't hurt either.

All the best,

Greg Egan
Remote Power Inc.
Fairbanks, AK
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