Chosen Solution
There was recently a power outage at my house, and my mac didn’t wanna turn on after that
It does sound like you got a surge which killed your power supply when the power was restored. You’ll need to check your onboard diagnostic LED’s. Follow this guide to take the display off iMac Intel 21.5" EMC 3068 Display Replacement stop at step23 . Referencing Step 22 locate the diagnostic LED’s
Is LEDs #1 and #2 lit? You may want to get an electrician to check your panel to make sure the buildings ground is good and install a full building surge suppressor and check your outlets ground as well so you don’t encounter a problem again.
