Houghvw

Hi, has anyone been able to resolve this ? I am seeing reports of corrosion on board tracks in some the other threads as the root cause, but they are not reporting the Grid Phase error. If I cycle through the display options to the one showing the grid input frequency, it's often below 50hz, especially when the grid comes back online after load shedding. I see it as low as 49.7hz. From what I see in the documentation, the device is rated for 50hz - 60hz. It stabilises after some time to 50.1hz. I don't have enough data at the moment to support that the low grid frequency is potentially a problem. My inverter will show the error a couple of times a day and then it's fine. It does not appear to be related to temperature or fan failure, at least for me.