Ningbo Sunways Technologies error codes
Ningbo Sunways Technologies inverter error code Grid Frequency Fault
Ningbo Sunways Technologies uses code Grid Frequency Fault 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 Ningbo Sunways Technologies. This page summarises Ningbo Sunways Technologies's own published documentation; your installer and Ningbo Sunways Technologies are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Sts Xktl P
- Meaning
- Grid frequency is out of expected range.
- Likely cause
- Improper AC cable connections or grid frequency issues.
- What the manual says to do
- Check the AC cable connection and possibly change to another country with a wider protection range if allowed by local electricity providers.
- Manufacturer's severity
- Critical
Ningbo Sunways Technologies's documentation says this one needs your installer.
Extracted from Ningbo Sunways Technologies's published manual. Check it against the manual for your model. Open the source document
As documented for Sth 3k 8ktl
- Meaning
- Grid frequency is out of allowable limits
- Likely cause
- Incorrect AC cables or setup.
- What the manual says to do
- Verify AC cable connections.
- Manufacturer's severity
- Warning
Ningbo Sunways Technologies's documentation says this one needs your installer.
Extracted from Ningbo Sunways Technologies's published manual. Check it against the manual for your model. Open the source document
As documented for Sts Xktl
- Meaning
- Grid frequency problem
- Likely cause
- Incorrect AC cable or connection issues.
- What the manual says to do
- Ensure AC cable is correct and connected properly.
- Manufacturer's severity
- Warning
Extracted from Ningbo Sunways Technologies'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.
We don't have a warranty line on file for Ningbo Sunways Technologies yet. See the manufacturer contacts we do hold, or ask your installer.