Hiya, I need help fixing my Covatutto 120 incubator. It was running perfectly keeping temp perfect, I did have it running constantly for approx 12 weeks not sure if that could do damage? I came down one morning and it was smoking, the temp had soared to 130 and the water trays were melted and all the eggs cooked. I've started it up but the fan blows cold and it doesn't heat up. Could it just be the heating element thats blown?