[jimcol]

Not familiar with your model but on mine the 110VAC terminates on the control board. From there, when the 12vdc control board tells it cooling is needed it cuts the 120vac through to the electric heating element on the refrigeration coil inside the stack. These elements do go bad. Going from memory I think that element should read something like 35 to 45 ohms. If you are fairly handy it is not a hard test or fix.