ards1184019

@Jamil Tulimat,
This behavior is due to your inverter settings, which appear that you have set the charging priority to "Solar First", which in this option, as long as solar is available, it doesn't charge from AC. Change it to "Solar and Utility" and you should get the desired behavior. Another possible reason is what "ards" suggested, that the AC voltage is too low to use for charging or AC output, just make sure that it's not your case.

Hello @Jamil Tulimat,
Please enter into Inverter Menu and check program 01 (You can change between USB and APL) and set it to APL as it widens the input voltage range. Set program 16 to SNU ( solar + utility combined) for battery charging via Solar and Utility

Maybe @BritishRacingGreenor @Coulombcan weigh in as the electronic fundis.

After you tried the steps @TaliaB indicated I would think the inverter picks up a quality of supply problem as I alerted to much earlier in the thread. These inverters are known to be sensitive. 

Thank you.  You have been approved. Welcome.
Sincerely
Jay