Solar · Error codes · SolarEdge
WARNING 1SolarEdge · HD-Wave single-phase inverter (SE2200H-SE6000H)
WARNING 1 on a SolarEdge HD-Wave single-phase inverter: Fan Failure - contact support
Short answer
On a SolarEdge inverter, WARNING 1 means: Fan Failure - contact support. The inverter keeps running. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Fan Failure - contact support.
Part involved: Cooling fan.
Likely causes:
- Fan failure.
Is it safe?
| Does the inverter stop? | No |
|---|---|
| Severity | Warning |
| Engineer needed? | Yes |
The inverter keeps running.
Resetting itself: no.
Manual reset: fan cleaning/replacement.
What you can check
- Read and note the exact code and time from the inverter display or app (screenshot).
- Check nothing is blocking the inverter's vents (look only).
- If the code persists, contact the installer. SolarEdge's list says 'OFF/ON to reconnect' for some codes - that means the inverter's own ON/OFF switch; only use it if your installer has shown you how. Never open the inverter or touch DC cables/connectors.
What the engineer will check
- Clean or replace fan.
Who to ask for: PV installer.
Certification: Electrician competent in grid-connected PV (BS 7671 Section 712; IET Code of Practice for Grid-connected Solar PV), ideally the original MCS-certified PV installer; brand-approved/trained installer to keep manufacturer warranty.
What you might notice
Sources
- User Guide: SolarEdge Inverters Error Codes and Troubleshooting, Version 1.1 (January 2026) ↗ · 1.1 · page PDF p.50 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026