Sunvolt battery error code 03
WattMate is not affiliated with Sunvolt. This page summarises Sunvolt's own published documentation; your installer and Sunvolt are the authority on your system. WattMate doesn't repair systems or make site visits.
What it means
- Meaning
- DC bus voltage falls below the lower threshold
- Likely cause
- Voltage at the battery is too low.
- What the manual says to do
- Turn the inverter on. Ensure the battery voltage is within 4 to 58Vdc.
- Manufacturer's severity
- Warning
Sunvolt's documentation says this one needs your installer.
Extracted from Sunvolt'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 Sunvolt yet. See the manufacturer contacts we do hold, or ask your installer.