Kstar error code F04
Kstar uses code F04 in more than one product range, and it doesn't always mean the same thing. Check which range your equipment belongs to below.
WattMate is not affiliated with Kstar. This page summarises Kstar's own published documentation; your installer and Kstar are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Bluepulse
- Meaning
- Bus Volt Low
- Likely cause
- Bus voltage is below normal operating range.
- What the manual says to do
- Check input voltage and restart if necessary.
- Manufacturer's severity
- Warning
Kstar's documentation says this one needs your installer.
Extracted from Kstar's published manual. Check it against the manual for your model. Open the source document
As documented for Bluespark
- Meaning
- Bus Volt Low: The bus voltage is low.
- Likely cause
- Input voltage settings might not be appropriate.
- What the manual says to do
- Check the input mode settings and restart the inverter.
- Manufacturer's severity
- Warning
Extracted from Kstar's published manual. Check it against the manual for your model. Open the source document
As documented for Bluespark
- Meaning
- Bus Volt Low: The bus voltage is low.
- Likely cause
- The input mode settings are not properly configured or low input voltage.
- What the manual says to do
- Check input mode settings and restart the inverter. If the issue persists, contact Customer Service.
- Manufacturer's severity
- Warning
Extracted from Kstar'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.
- Kstar warranty email
- service_solarinverter@kstar.com
- Kstar service network
- Open the manufacturer's service page