The only thing I can suggest is plug it into another outlet (make sure it's non GFCI) and try it again.
A little clicking can be normal, it's the unit cycling.
Did you check the inside of the smoker, was it getting heat?
It could be as simple as the display was frozen (the Liquid crystal can do then when it's really cold) use a hair dryer to warm it up.
there are potential issues it could be, but we can't really isolate them, unfortunately you'll need to call CS on Monday if the above doesn't work.
As a caution for other new owners who might read, that's why we ALWAYS suggest testing the unit as soon as you get it and during the weekday. It could be a simple fix or a complex on and Customer Service will have to help. We can try, but we can't provide replacement parts, if needed.
Now, why did you buy it months ago and not try it. Shame on you, think how much Q you could have been making.
Sorry it happened, we'll try to help