Error Codes

Common Descriptions, and solutions to error codes

Arc Fault Detection & Troubleshooting
An AFCI or Arc Fault Circuit Interrupter is a device used to detect arcing in an electrical circuit and to interrupt the flow of current.  It is installe...
Mon, 25 Mar, 2019 at 8:15 AM
OV-G-F / UV-G-F Fault EXPLAINED & Troubleshooting
OV-G-F - Grid Frequency isn't within operating parameters.  This fault will put the inverter into a complete fault status, and it will not return t...
Mon, 25 Mar, 2019 at 6:55 AM
PV-ISO-PRO 01/02 - GROUND FAULT
Ground faults are a notorious issue with PV installations. Essentially you have either a positive or a negative connected to ground. NUMEROUS causes can tri...
Mon, 25 Mar, 2019 at 8:10 AM
OV-G-V Grid Over Voltage
OV-G-V Over Voltage Detected at the Grid Fault Description The fault OV-G-V is caused by the inverter detecting grid voltage outside of its normal oper...
Mon, 25 Mar, 2019 at 7:05 AM
UN-G-V Grid Under Voltage
UN-G-V Under Voltage Detected at the Grid Fault Description The fault UV-G-V is caused by the inverter detecting grid voltage outside of its normal ope...
Fri, 24 Aug, 2018 at 8:15 AM
UN-G-F Grid Under Frequency
OV-G-F Over Frequency Detected at the Grid Fault Description The fault UN-G-F is caused by the inverter detecting grid frequency outside of its normal ...
Fri, 24 Aug, 2018 at 7:51 AM
NO-GRID Inverter Does Not Detect Grid
NO-GRID Inverter Does Not Detect Grid Fault Description The fault NO-GRID is caused by the inverter not detecting voltage at the grid.  Possible Solut...
Fri, 24 Aug, 2018 at 8:17 AM
I-Leak Pro Error Explained
An I leak is a current leakage to ground. This can happen on the AC or DC side of the inverter circuit. Typically the I leak is a kind of ground fault t...
Mon, 25 Mar, 2019 at 7:17 AM
Blank Screen / Blank LCD / No Lights
If the inverter's display doesn't show any lights or activity, the most common problem is that there is no DC voltage to the inverter. All of the ...
Mon, 25 Mar, 2019 at 7:11 AM
Inverter Stuck in Initializing
Provide an RMA for the inverter, it's not receiving a signal from the DSP board or the internal power board is broken. 
Mon, 25 Mar, 2019 at 7:19 AM