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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