Why does my ps4 turn on then right back off?

I Pre order ed a ps4 deluxe battle front edition 500gb hdd and around 3 months ago i shut it off to take it apart to dust it out because the fan was getting way to loud during gaming. after i dusted out the ps4 i put it back together and when i turned it on the blue light comes on for about one second and it shuts off. then i have to unplug and reconnect the power cable and it does the same thing. Any advice? all the cables are conencted, from the info ive gotten is that the sotter joints on the apu are bad? i dont believe this because it was working just fine not even a hour ago. Please help me i want to get this back up and running because i paid $500 and i need it in my daily life.