Product review (5 stars): but the refrigerator still wouldn't cool, but thankfully now I could hear the capacitor ...
My 6 year old GE Profile refrigerator started to have issues (model PDSS0MFXALSS).  Some days it would stay cold and work, others the temps would rise significantly.  Finally, it just stopped cooling all together (compressor would not kick on, nor could I hear the capacitor trying to start the compressor).  Based on the symptoms, I suspected the control board.  I replaced the control board (part number WR55X10832), but the refrigerator still wouldn't cool, but thankfully now I could hear the capacitor clicking and trying to start the compressor every 2 minutes or so.  I ordered this  "combination device," aka overload circuit and a new capacitor (part number WR62X79 on mine, may be different on other models), and now the refrigerator is cooling perfectly.

Of note, the original part I replaced was black in color and had a different wiring arrangement (still 2 terminals and two slots to insert the capacitor, these were just in different places), but I was able to connect everything.