Originally Posted by tmryan1012
That was my next option. I know it should have been done first but it is cast and the high limit isn't tripping.
I'm not following how the pressure switch being "cast", and the high limit "not tripping" are related?
be sure you test it (the pressure switch), before you replace it. Remember, a VOM and manometer are your friends.
Instead of learning the tricks of the trade, learn the trade.