surface pro 3 charger

Hello, Something really really wierd is going on with my SP3. I have changed my screen and it was working for several days so perfect and sudenlly without any proper reason touch stopped working. My SP3 is always standing on laptop cooling pad without me moving it. First I tought that maybe...

Here's the deal, My surface is less than a year old and my charger began getting faulty (or so i thought) it just didn't charge then did, then didnt until it completely went. I thought this was my surface, a driver problem of some sort in which i was sent a replacement but then to be told they...