Just FYI, I am new here. Maybe I am not in the right place but I need to start from somewhere.
All started with an ECR blowing in my wife's face (almost). It's a Frigidaire CFEF357ES1 stove. After digging in for the culprit, I discovered that the ECR (model # 318185401) exploded at one of the big black relay pins. The display is showing "something", but nothing useful (I will explain later). OK, no big deal. Relay changed (even if it was good - tested on the bench - because the pin was just pulverized in the explosion) with a new one. The 2 boards were nicely cleaned. Power up: the oven is still dead and the display is showing the same "something" but not useful image (I cannot call it information). Checking online and over the phone, I found some ECR's at ridiculous prices (between $150 and $500).
Having knowledge in electronics I start the debugging at a component level. In this way, I discovered that I have a short between the (+), (-) and another pin of the Samsung micro-controller (the brain of this ECR) - S3P8475XZZ-AQB5 with a software label V3.4. This part is made on order by Samsung so it's not possible to get one. Even if I will have one, you need to load a software on this part (which again it's impossible to find). So, it will not be possible to change this part.
Now, back to the entire ECR. Electrolux (the maker of Frigidaire and other brands) decided to replace this ECR model (318185401) and others with just one other model that has more parts on it and could be used on more models. On top of that, this new model is much cheaper (higher volume, I guess). For example in my case, I would need just to remove a resistor from this new board and it will strip down some functions from this new ECR and would be now compatible with my oven. Now the question is: what would be the ECR new model number that could be "adjusted" to be a direct replacement for my ECR model? The electrical drawing # for my oven is 318046743 rev A.
Again, if I landed in the wrong place I am very sorry and anything would be good, even a redirect to another place.