Jon:
In the deep recess of my memory I recall this error code with FX inverters. It was caused by a stuck transfer relay. You might open the inverter cover and look for signs of smoke or arcing in the relay. Good luck! Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985 *From:* RE-wrenches [mailto:[email protected]] *On Behalf Of *Jon Siegenthaler *Sent:* Friday, December 11, 2020 6:01 PM *To:* [email protected] *Subject:* [RE-wrenches] Outback AC Backfeed Error Hey wrenches, I have a client who has a couple of the Radian 8048's and has an error code of "AC Backfeed Error GS-1". Looking at the manual it states that "Usually indicates another AC power source (out of phase with the inverter) was connected to the unit’s AC output. Can also occur if an out-of-phase AC source is connected to the inverter’s AC input." However when this happened the generator wasn't running and it's an off grid system. Is there a way that the master is looking to the slave as another power source? The system had been running fine this week, auto running the generator early morning and shutting down on its own. Anyone seen something like this before? Thanks, Jon Siegenthaler
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