- Error code
- 020
- Category
- Intermediate circuit (DC link)
- Manufacturer
- SUNGROW
1What the error means
Intermediate circuit overvoltage (Bus Over-voltage): the voltage on the DC link capacitors exceeded the safety limit.
2Possible causes
- Worn or dried-out DC link capacitors
- Fault in the boost converter circuit
- Sudden voltage changes
3What to do
- One restart with AC and DC switched off.
- If it returns, the DC link capacitors need to be checked and usually replaced.
4Repair by Aineas
You send the inverter to our lab in Thessaloniki. We diagnose it, inform you of the fault and the cost, and the repair starts only after you approve it. Every inverter is tested under simulated operating conditions before delivery.