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Sigenergy SigenStor
Restarting your SigenStor correctly helps maintain system stability and protects the battery. Follow each step in order to ensure a safe and proper reset.
Before you begin
- Restart during daylight hours if your system receives solar input.
- Make sure there are no active backup loads running before shutting down.
- Do not restart during firmware updates or while the system is in backup mode.
- Avoid restarting during lightning activity or if any components appear damaged.
1. Turn off the AC isolator
- Inside the Sigenergy Gateway, locate the switch labelled “Inverter Supply”.
- Flip this switch OFF to remove AC power from the inverter.
2. Turn off the DC isolator
- The DC isolator is inside the small cover on the left side of the inverter.
- Lift the cover upwards to remove it.
- Turn the switch labelled DC to the OFF position.
3. Wait 1–2 minutes
- Let the system fully power down — all indicators and displays should switch off.
- This pause allows internal components to discharge and ensures the reset applies correctly.
4. Turn the DC isolator ON
- Switch the DC isolator ON and wait around five seconds.
5. Turn the AC isolator ON
- Switch the AC isolator back ON.
6. Allow the inverter to reboot
- The unit will run internal checks and re-establish communication.
- Within a few minutes, the inverter screen or LEDs should indicate normal operation.
7. Confirm normal operation
- Check the LED indicators — the AC, DC, and Battery lights should be green with no alarms.
- Open the mySigen app to confirm that generation and communication data are updating correctly.
- If a warning or fault returns, record the error code before contacting your installer or Sigenergy Support.
Tips
- Don’t restart the system repeatedly — wait at least 1–2 minutes between shutdown and startup.
- If the inverter won’t power back on, check that the DC isolator and PV strings are ON and that there is daylight available.
- For larger systems, ensure all connected SigenStor units are restarted in the same order to avoid communication issues.
- If errors persist after a proper restart, contact your installer or Sigenergy Technical Support.

