not turning on after electricity shutdown

"- try another electrical outlet

- disconnect any USB printer and/or sound system connection

- disconnect power overnight, reconnect power and attempt to turn on first.

If this answer is acceptable please remember to return and mark it."

Bump. Have the same problem. But what is the cause of this issue and how to fix it?

"Same here after the surge airport went dark when reconnected the psu it blinks green and goes to solid amber for ever, nothing works and the reset button doesn’t affect it at all, tested with known working psu and results stay the same so doubt it’s a psu, my bet is on the unit itself, i’ll try to gut it when I will have a free moment and take a look around logic board.

Update (10/14/2019)

so after a little bit of inspection, all the components indicated on the photo are short to ground which causes almost 50% of the switch IC legs short to ground also."