ScottG wrote:
If it (the heating element) does get hot then it is most likely the control board.
Just because it gets hot does not mean it is getting hot enough. The only way to know for sure is to take a current (amp) reading and measure the voltage where the fridge is plugged into. Multiply the 2 numbers together and you will have the wattage of the heating element. If it is less than say 325 watts +/- 10% (depending on the fridge you have) than it is not getting hot enough to heat the ammonia and hydrogen to the proper temperature and the fridge is not going to cool properly on AC, but will on propane.