Hi. Might be a simple explanation, either incorrect setup or an issue with the battery. I suggest checking here: 

1. My cordless vacuum cleaner is making a pulsing noise, what does this mean?
2. My Cordless vacuum cleaner’s battery isn’t charging, what can I do?

If no better, visit their online diagnostics and input the issue: Visit Dyson.com

If still broken, consider calling dyson and either returning/swapping. 

@Alenzen check it’s been set up correctly. If it has, look at the light on the battery. What is it flashing? 

Edit to add:  I took it to the local Dyson service center and they replaced it and said the computer was bad.  I got a new vacuum and just got home and charged it and it works like it should!  Very happy now:)