I would return it, something's very wrong. First, though, have you tried to reboot your iPad? That sometimes resolve issues. First time I used my air after the initial setup there was some strange loud noises from the speakers. A reboot resolved it, and I've had zero problems since.
http://www.dailymail.co.uk/news/article-2492189/iPad-Air-EXPLODES-leading-mobile-phone-shop-evacuation.html interesting.
1: it wasn't an iPad air 2: I wouldn't believe the Daily Heil even if they said the grass was green and the sky was blue.
Well, we know the device in question was a 4th-gen iPad, so that discussion has already been put to bed.