- Error code
- W008
- Category
- Grid impedance
- Manufacturer
- ABB / FIMER
1What the error means
The grid impedance is out of range. The point of connection is too “weak” to accept the power of the inverter.
On the display or in the monitoring software it appears as Z Grid HI.
2Possible causes
- High impedance at the point of connection
- Undersized or very long AC cable
- Weak grid connection point
3What to do
- Check the cross-section and length of the AC cable.
- Measure the voltage with the inverter at full output.
- If the grid is fine, check the inverter's impedance measurement.
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.