What can be done about ABB / Power One Aurora Riso Errors?
Have you just passed your ABB or Power One Aurora solar inverter and noticed a Riso Low fault and a red GFI light?
What is the meaning of the Riso Low Error?
According to the ABB / Power One Aurora operators manual, Riso Low indicates that the inverter has detected low insulation resistance on the DC side of your solar power system; this is typically not a problem with the inverter, but rather with the DC circuit connected to the inverter. This may be a problem with the wiring, the DC isolators, or the solar panels.
What to Do About an ABB / Power One Aurora Inverter Riso Low Fault
If your ABB or Power One Aurora inverter is showing a Riso Low Fault as mentioned earlier it probably indicates a problem, with the insulation resistance of the DC side. This particular issue will need the expertise of a power specialist in your area ; if you are situated in or, near Perth feel free to get in touch with us.
