i recently purchased a cardiff by current. i am experiencing overheating. it is running 82-83 with no lights, right out of the box. the store and manufacturer claim they havent seen this issue. if you own one, are you having this issue, or are they telling me the truth? they are sending me a replacement pump to try, but mine doesnt feel warm or anything. i believe it might be a bad design and they are lying to me about overheating problems.