The PVI series was one of Power-One’s original residential and commercial string inverter lines, later carried forward under ABB and eventually Fimer. Like the related Aurora line, PVI inverters are now a discontinued platform — most units still in service are well over a decade old.

Common PVI Error Codes

Arc Fault Warning: A safety fault requiring prompt attention — not a routine performance issue. See our full guide on arc fault errors.

Ground Fault / Insulation Resistance Fault: Reduced insulation resistance in the DC wiring, frequently tied to age-related cable and connector degradation.

Grid Fault: Out-of-range grid voltage or frequency detected by the inverter. Infrequent occurrences are often transient; recurring faults suggest an underlying wiring issue.

Internal Fault / Dead Display: The most common finding on PVI units at this point in their service life — internal hardware failure from age, not a fixable configuration issue.

Why Repair Isn’t Usually the Right Call Anymore

Because PVI is a discontinued platform absorbed through two ownership changes (Power-One → ABB → Fimer), sourcing exact replacement components has become increasingly difficult and expensive relative to the cost of a modern replacement inverter. Combined with the age of most units still in the field, replacement is almost always the more practical option for PVI owners today.

What to Do If You Have a PVI Inverter

Many PVI systems were installed by companies that are no longer in business. That doesn’t affect your ability to get service — see our orphaned solar system help page for details on servicing systems left behind by defunct installers.

Related Reading

Get Your PVI System Evaluated

ElectriCare evaluates aging PVI systems and provides direct replacement options when a discontinued platform is no longer practically serviceable.

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Sources & Further Reading