SMA inverter error code 404
SMA uses code 404 in more than one product range, and it doesn't always mean the same thing. Check which range your inverter belongs to below.
WattMate is not affiliated with SMA. This page summarises SMA's own published documentation; your installer and SMA are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Sunny Tripower X
- Meaning
- Grid incident - Disconnected.
- Likely cause
- A stand-alone grid or a very large change in the grid frequency was detected.
- What the manual says to do
- Check for power outages. Contact grid operator if needed.
- Manufacturer's severity
- Critical
SMA's documentation says this one needs your installer.
Extracted from SMA's published manual. Check it against the manual for your model. Open the source document
As documented for Sunny Island X
- Meaning
- Grid incident - Disconnected from utility grid
- Likely cause
- A stand-alone grid or a significant change in grid frequency was detected.
- What the manual says to do
- Check for power outages or maintenance on the utility grid. Contact the grid operator if necessary.
- Manufacturer's severity
- Warning
Extracted from SMA's published manual. Check it against the manual for your model. Open the source document
When to call your installer or the warranty line
Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware. Don't open the inverter or battery case yourself: work inside it is for a licensed electrician.
If you see smoke, scorch marks or smell burning, switch the system off at the AC and PV isolators and call your installer. If anyone is in danger, call 000.
- SMA warranty phone
- 1800 762 287
- SMA service network
- Open the manufacturer's service page