Hello,
We are trying to repair a Quattro 8KW that has a constant overload alarm.
- There is no AC connections to the device.
- When started the device makes an audible hum then sets to Alarm and cuts off AC out.
- No shorting was detected in regular continuity checks.
- We tried swapping communication modules with later firmware.
Thus we suspect a hardware issue.
Hopefully, there is a better way to repair it than swapping one board after the other until finding the source of the alarm.
Is there perhaps a troubleshooting guide for hardware issues?
What could be the likely source of an overload alarm when nothing is connected to the AC terminals?
