Disclaimer: This content is for informational and educational purposes only. The diagnostic steps described are suggestions, not an official service manual.
Phenomenon: ShinePhone app displays “Datalogger Already Exists” during addition attempt.
Technical Causes:
- Datalogger SN previously registered under another account or plant.
Diagnostic Procedure:
- Log in to existing ShinePhone account.
- Navigate to Plant > Datalogger List.
Resolution:
- Long-press the existing datalogger entry > Select “Configure Datalogger” > Reconfigure WiFi if needed.
- If not visible or under different account: Contact previous owner/installer to remove, or Growatt support to release SN.
- Reset dongle and retry addition after release.
WARNING: Maintenance and repair of PV systems, high-voltage DC, and AC components must only be performed by certified professionals with valid electrical qualifications (e.g., SEP/G1 in Poland, or local European equivalents). Unauthorized opening of the inverter housing will void the warranty and carries a risk of electric shock or fire.
In case of persistent hardware failure, the only authorized path for repair is contacting the official Growatt Service Department.