We are having a plate full of crow. After my first attempt to contact Demetic, I know I could do better. After searching several web sites, and a lot of frustration. I called Dometic again. Went through everything , The Lady could not have been more knowable, nice, and helpful. Had it in stock, told me what it looked like. Out of 4 heaters on a NDA 1402, she had done this before. The part will be here Friday. Very satisfied.