Product review (5 stars): Progressively became worse. Then I started to hear a click
This little part 100% fixed my refrigerator.  Fridge and freezer went a couple of weeks not maintaining temperature after normal use (around dinner time) but would recover overnight.  Progressively became worse.  Then I started to hear a click.  I would hear a click and the compressor would run.  Several minutes later I would hear another click and the compressor would turn off.  This too became worse to the point where the compressor would only run for 7-8 seconds before shutting back off.  I replaced this part and did not replace the start relay that plugs into it.  While your fridge is away from the wall take the opportunity to thoroughly clean all the dust and pet hair.  The only tool needed is a nut driver or small wrench to remove the back panel.