u/No-Income-1640

I have an Ac300. Added 6 powerbay 440w solar panels. 3 panels on pv1 and 3 panels on pv2. All my research told me this was safe and within the capabilities of the Ac300. I have been running on Pv1 for weeks without issue, while I waiting for more cable to connect the panels on pv2. Today I connected pv2 and it ran for hours without issue until the ac300 seemed to have burnt out. Blank screen, popping sounds and smoke.

Was my research incorrect or is there a hardware issue here?