STATE 406STATE 406
AC module temperature sensor faulty
Behaviors
The inverter will automatically attempt to connect again and, if possible, 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 406 applies to:
Primo
Galvo
Symo
IG Plus
IG
Solutions for this Error
Remedies
- Check inverter location, clearance of the ventilation ports. Clean air inlets and ensure exhaust ports have proper space.
- 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.
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
