Solar · Error codes · Solis
LmtByVgSolis · S6-EH1P L-PLUS 48 V hybrids
LmtByVg on a Solis S6-EH1P L-PLUS 48 V hybrids: The device is in the Volt-Watt mode (output limited by high grid voltage)
Short answer
On a Solis inverter, LmtByVg means: The device is in the Volt-Watt mode (output limited by high grid voltage). The inverter keeps running.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: The device is in the Volt-Watt mode (output limited by high grid voltage).
Part involved: power limiting.
Likely causes:
- Local grid voltage high - Volt-Watt response required by local regulations.
Is it safe?
| Does the inverter stop? | No |
|---|---|
| Severity | Information only |
| Engineer needed? | No |
The inverter keeps running.
Resetting itself: yes.
Manual reset: No action generally needed.
What you can check
- Read the full code and message on the inverter screen or in the SolisCloud app and note the date/time for your installer.
- Check the inverter's AC isolator next to the inverter and the solar/battery breaker in the consumer unit are ON (do not reset a breaker that trips again - call your installer).
- This is a status, not a fault: output is being reduced because your mains voltage is high. If it happens a lot, ask your installer.
What the engineer will check
- If factory setting error, installer can change working mode in Advanced Settings (password protected).
Who to ask for: Installer, with DNO (network operator) if grid supply is at fault.
Certification: None for homeowner checks; any grid-protection setting change needs installer and DNO consent (G98/G99).
What you might notice
Sources
- User Manual for S6 Series Hybrid Inverter S6-EH1P(3-8)K-L-PLUS ↗ · Version 1.0 · page 51 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026