- Error code
- 835
- Manufacturer
- KOSTAL
- Models
- Piko
1What the error means
On many Kostal units, after 5-6 years of operation, a fault appears when the inverter operates above 3-4 kW. This means that although it is working normally, there are leakage currents that force the inverter to stop.
2Possible solution
Contact our technicians for the repair of your inverter.
For all known faults of Kostal inverters click here
3What to do
- Note the code and the inverter model (nameplate on the side of the unit).
- Switch off the grid (AC) breaker and switch it on again after 2–3 minutes.
- If the error returns or keeps recurring, do not keep restarting the unit — contact us for a diagnosis.
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.