9101 on a SMA Solar Technology AG inverter: An error has occurred during calibration. The cause must be determined by the Service
Short answer
On a SMA Solar Technology AG inverter, 9101 means: An error has occurred during calibration. The cause must be determined by the Service. The manual does not say whether the inverter stops. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 2 sources
What it means
The manual says: An error has occurred during calibration. The cause must be determined by the Service.
Part involved: inverter electronics (self-diagnosis).
When it shows: An error has occurred during calibration. The cause must be determined by the Service.
Likely causes:
- SMA corrective measures: Contact Service.
Is it safe?
| Does the inverter stop? | Not stated |
|---|---|
| Engineer needed? | Yes |
The manual does not say whether the inverter stops.
Resetting itself: unknown.
Manual reset: See engineer checks.
What you can check
- Read the event number and message in the SMA Energy app / Sunny Portal (ennexOS) or the inverter's web interface and note the date/time for your installer. A red LED on the inverter means an event has occurred.
- SMA states the cause must be determined by SMA Service - contact your installer.
What the engineer will check
- Contact SMA Service; retrieve event log and device diagnostics.
Who to ask for: PV installer / SMA Service.
Certification: Qualified electrician (BS 7671; MCS-certified PV installer for work on the PV array/DC side).
What you might notice
Sources
- Operating manual SUNNY BOY SMART ENERGY 3.6/4.0/5.0/6.0/8.0/9.9 ↗ · SBSExx-50-BE-en-12 Version 1.2 · page 100 · Reviewed 24 September 2026
- Operating manual SUNNY TRIPOWER 3.0/4.0/5.0/6.0 ↗ · STP3-6-3AV-40-BE-en-20 Version 2.0 · page 100 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026