i have a kenmore elite model number 795.74023.412 i have replaced the capacitor the thermistor and the pcb board my problem is i cant get fridge to cool down all the way like it should its about 7 degrees off it wont hold temp it goes up and down fridge and freezer are doing the same thing fridge about 45 and freezer at about 5 degrees it acts to me like it dont come on when it should but when it does it cools off pretty quick to around 40 i cant get it down to 33 or any colder then 40 any ideas on which way to direct me