Easy Solar 48/3000 has been running perfectly for a year. It is now going into alarm on AC overload. This does not occur immediately but after approx 30 mins. Upon reset, it starts again and repeats this cycle. The load is a swimming pool pump of 1600w. The reset does not co-incide with any pump restart. The pump has been connected with an independent service and operates normally. The physical temperature of the inverter is reasonable and cool enough to hold hand on. Inside the inverter casing has been examined and vacuumed. There is NO AC input. This is stand alone Easy Solar.
Upon reset and restart, the unit starts up with the fam immediately on.
Question is that the overload may be because:
1) a fault of the inverter power electronics that cant maintain this 60% power level
2) a fault of the thermistor that provides the internal temperature which may set a derated limit
Thoughts please....