Sparks flew out the back on 3rd use

My mother got this for me as a Christmas present. 1st time I used it, it was great. She loved the chicken we did. Cleaned it good. 2nd time we used it, it smoked a little. Turned it off, let it set for a little while and tried again. No smoke and food was good. 3rd time we used it, sparks flew out the back and that was it. Needless to say, it was expensive for something that was used 3 times and lasted less than a month. Thought about checking out the warranty on the manufacturer's site, but I really don't want another one. Think I will try a different brand. Figured it deserved 2 stars because the food did taste good.

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