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I'm new to this, I'm trying to help with Kiln repair. My friends have an L&L easy fire kiln. Last firing it could not get up to temp. It seems to me the middle elements are not getting power, it appears the relay is the problem. The relay is a double pole relay. (does it need to be?) Checking with a meter, half the relay still works. My thought is to just bypass the other half so that one side of the relay could energize the element. I wonder why they are double pole relays to begin with, I'm inclined to parallel the poles for all the elements so that there is redundancy. Meaning... one end of the element is always connected to 240V, the other end is turned on and off by the relay. I don't understand why why two connections are necessary.