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Froniuis displaySTATE 452

STATE 452

Power Stack Filter Communication Error

Behaviors

The inverter will wait for the defined grid wait period (typically 5 minutes) and automatically attempt to connect again and resume grid power feed operation

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 452 applies to:

Primo

Primo

Galvo

Galvo

Symo

Symo

IG Plus

IG Plus

CL

CL

Solutions for this Error

Remedies

  • Power Cycle the Inverter. To do so, both the DC and AC power sources must be disconnected to allow the device to discharge. Once the device has had time to discharge, turn on both the AC and DC power sources to the inverter.
  • Run latest firmware update
  • 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.

Additional Info

This error may occur unexpectedly due to temporary electromagnetic disturbances, although it is also common when a firmware update is running as the sun sets. Typically, power cycling the inverter will resolve this issue. Ensure that night mode is enabled when updating firmware near nighttime hours. If this error persists after power cycling the inverter and updating the firmware, a Fronius-trained technician may need to replace the PRIMOFIL board.

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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