
STATE 604
DC module temperature sensor faulty
Behaviors
The inverter will automatically attempt to connect again and, if possible, resume feeding energy into the grid
Status Code Class 6
Class 6 status codes (state codes that start with a six, i.e., 6xx), may necessitate intervention by a Fronius-trained service engineer.
STATE 604 applies to:

Symo
Solutions for this Error
Remedies
- 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