Solar · Error codes · Solis
FanSolis · S6-EH1P L-PLUS 48 V hybrids
Fan on a Solis S6-EH1P L-PLUS 48 V hybrids: Fan alarm
Short answer
On a Solis inverter, Fan means: Fan alarm. The inverter keeps running.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Fan alarm.
Part involved: internal fan.
Likely causes:
- Internal fan jammed or failed.
Is it safe?
| Does the inverter stop? | No |
|---|---|
| Severity | Warning |
The inverter keeps running.
Resetting itself: unknown.
Manual reset: Installer checks fan.
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).
What the engineer will check
- Check internal fan operation.
Who to ask for: Qualified electrician / MCS PV installer.
Certification: Work on DC strings and inverter enclosures: competent PV installer (MCS-certified installer for warranty/SEG continuity); electrical work notifiable under Part P (England & Wales) or equivalent.
What you might notice
Sources
- User Manual for S6 Series Hybrid Inverter S6-EH1P(3-8)K-L-PLUS ↗ · Version 1.0 · page 53 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026