STATE 450STATE 450
The monitoring of the power stage set main processor Guard is active
Behaviors
Inverter ceases enrgy production and displays the STATE 450 status code
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 450 applies to:
Primo
Symo
IG Plus
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.
- 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 issue is typically resolved by power cycing the inverter. After 5 minutes following restarting, the inverter should resume energy production.
If the error persists after power cycling, typiclly an internal PC board (PINCI2) has failed and will require replacement by a Fronius Service Partner, or more commonly at this point, replcement of the inverter itself.
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
