There were small metal chips (like metallic paint) inside it from drum rubbing on the slightly dented top. After taking entire dryer apart and vacuuming and wiping everything clean I discovered a short in the temp. sensor. I replaced both sensors to be on the safe side, cleaned everything and was ready to put back together. After fully assembling it , I turned it on and it has'nt worked this good since it was new. Ps. I pushed out the dent and now my wife is soooo happy! It works great.