1022 on a Sigenergy SigenStor: Manual operation protection. Official suggestion (summarised): After confirming no hazard, reset the emergency stop button
Short answer
On a Sigenergy inverter, 1022 means: Manual operation protection. Official suggestion (summarised): After confirming no hazard, reset the emergency stop button. The inverter stops until the fault clears or is reset.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Manual operation protection. Official suggestion (summarised): After confirming no hazard, reset the emergency stop button.
Likely causes:
- Emergency stop (rapid shutdown) button pressed.
Is it safe?
| Does the inverter stop? | Yes |
|---|---|
| Severity | Warning |
The inverter stops until the fault clears or is reset.
Resetting itself: yes.
Manual reset: n/a.
What you can check
- Read the alarm code, name and ID in the mySigen app.
- Report it via mySigen app Support > Troubleshooting (Sigenergy's stated route) or contact your installer.
- If the emergency stop was pressed by mistake and there is no hazard, release it (per alarm list).
What the engineer will check
- Sub-IDs: ID1 EPO protection.
Who to ask for: battery storage / PV inverter.
Certification: Sigenergy-trained installer; MCS PV/battery installer for certified installs; electrical work to BS 7671.
What you might notice
Sources
- Sigenergy Alarm List (Version 05) ↗ · 05 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026