SPF 5000 ES getting crazy

[Ezo]

After 2-3 years, the inverter shows wrong values for PV power (Wh) and charging power (Wh). For example, on Growatt's screen I see 2000Wh PV and charging battery with 4000Wh. Even during the night there is PV power reported on screen. Not talking about apps here, forget about them.

Also for the charging current, sometimes I see 80Ah... No connection to national grid, no generator.

I tried to reset to factory defaults, same behavior.

If I disconnect all the power supplies, I start it again with PV and battery connected and it works fine for 1 or 2 hours, displaying normal value for the daytime, then it gets crazy again.

The coolers are working at maximum when NOK. But after reset the coolers are relatively quite.

No firmware update so far (I have 040 / 041), however I wonder if anyone met this issue before.

Thanks.

 

[Mattb4]

Don't really have any suggestions beyond making sure the insides have been cleaned of dust. I have found when things start acting odd in computer land it is because somewhere in the electronics a component is beginning to fail. Since these low cost AIO's do not provide any schematics or replaceable parts it probably would be a good time to shop for a new one. 2-3 years of use might be at end of life.

 

[timselectric]

I'll second the recommendation for cleaning.
Dust will collect on circuit boards and attract humidity, which will create unwanted electrical pathways.