I've also replaced the machine control board and the door lock assembly.
The one thing I really hate about that model of Neptune is the stupid
wax motor that Maytag used in the door lock which when it fails burns
out a resistor on the control board about 50% or the time.



It burns out the triac which controls it, which also takes out the
resistor. Fortunately about $1 worth of parts fixes it, I use a much
more robust 600V 10A TO-220 case triac in place of the little plastic
TO-92 300mA 400V one.