1112 on a Fronius International GmbH Fronius GEN24 / GEN24 Plus: Grid voltage exceeds the stored limit value so the inverter reduces power
Short answer
On a Fronius International GmbH inverter, 1112 means: Grid voltage exceeds the stored limit value so the inverter reduces power. The inverter keeps running with some functions stopped. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Grid voltage exceeds the stored limit value so the inverter reduces power.
Part involved: GEN24 inverter.
When it shows: Grid voltage exceeds the stored limit value so the inverter reduces power.
Likely causes:
- Informational; if frequent, installer may raise with DNO.
Is it safe?
| Does the inverter stop? | Partly |
|---|---|
| Severity | Warning |
| Engineer needed? | Yes |
The inverter keeps running with some functions stopped.
Resetting itself: yes.
Manual reset: Automatic.
What you can check
- Check Service Messages in Fronius Solar.web or the inverter's web interface (System > Event Log) and note the code.
What the engineer will check
Who to ask for: Fronius-trained installer.
Certification: Qualified electrician (BS 7671; MCS-certified PV installer for work on the PV array/DC side).
What you might notice
Sources
- Help with the Fronius GEN24 (homeowner status codes) ↗ · Web page retrieved 2026-09-24 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026