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Froniuis displaySTATE 448

STATE 448

Neutral conductor not connected

Behaviors

Inverter does not feed current into the grid

Status Code Class 4

Class 4 status codes (state codes that start with a four, i.e., 4xx), typically necessitate intervention by a Fronius-trained service technician.

STATE 448 applies to:

Primo

Primo

Galvo

Galvo

Symo

Symo

IG Plus

IG Plus

IG

IG

Solutions for this Error

Remedies

  • Check AC breakers and switches are in the ON position. Check mains AC voltage and frequency at the inverter clamps (Qualified persons only). This error should automatically clear once the grid is back within an acceptable range. If the grid is within operating parameters and this error persists, the device may have an internal failure.
  • Check country code selected and rerun country setup if necessary
  • If this issue persists, the next steps include inspecting internal inverter components and their cabling by a trained Fronius Service Provider to further diagnose this specific issue. Defective components or the device itself may need to be replaced.
  • NL-MON may need to be replaced

Get Help with this Error:

The best point of contact is your original installer
If the orginal installer is no longer available, contact a local Fronius Service Provider

DENVER RESIDENTS: Is your system located in the Denver, CO metro area? CONTACT US

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