It sounds like you need to arrange a warranty repair.  Call Dell. The depot repair is 7-10 business days.  
I've had this laptop for around 3 months now and it was working fine until I went out one night, come back home only to see the laptop dead even with the charger connected. My first thought was that it just went to sleep, but nothing happened when I pressed the power button. I checked the LED on the laptop and it was off as well. The fans weren't turning on and everything was not working. I tried every hard reset options out there like removing the battery, getting rid of residual power and so on, but still no sign of life. What should I do here? I am completely lost and need the laptop back asap. Is it an option to send the laptop back to Dell for repairs? And how long would it take approximately? Pls help.
G15 5511 Not turning on