i' ve found broken bra wires sticking up in the sump house(wife's of course)  remove the big hose that is  connected to the bottom of the outer drum feel inside the drum  you may feel it, The more drastic measure  if the first option fails  is the removal of the heater but will need resealing if disturbed best to try first option.
                 wirecutterman
                
 February 2008