American fridge freezer, ice maker broke. how do I fix it.

Something here should cover your problem.
side by side refrigerator ice on freezer floor YouTube

You either have a faulty thermostat, a loose connection or most likely a build up of ice inside the freezer. I had the same problem. Almost replaced fridge. Took all the food out one day, took out the racks and disassembled bottom and rear and found a two foot log block of ice inside air return. Removed ice everything works perfectly.

That is a very bad sign, but before you unplug it pull the machine out from the wall and check to see if it feels hot back there as well. Then remove the lower cover and find the condersor fan motor. Its the only fan back there. I'd willing to bet that the fan is not running. The purpose of the the fan is draw air across the compressor and blow it through the condensor therefore lowering the temperature on both parts. When its not working/ running, the heat from the compressor and the condensor is pass onward to the machine and the machine then acts as a heat sink

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have you tried cleaning the condensor coils.

If you are not capable to do that much better to call service Engineer to avoid big damage of your Freezer.

check for frost in back of the freezer

If its broken is probably better and cheaper to get a new one than try to fix it or pay to somebody to do it.First unppluged the fridge take the two scrwes that holds the ice maker to the freezer side wall and another one in the bottom of the ice maker once is loose you'll see a plastic plug ,pull itout and you can take the machine off and put a new one.When installing the new one make sure that the filling plastic tube is right through the hole in the back of the ice maker.

Ice cubes freeze from the outside, so the center of the cube is the last to freeze. Ice is pure water, only H 2 O, so as the ice cube freezes, all of the dissolved minerals are pushed to the center. Near the end of the freezing, there isn't much water left in the center of the cube, so these minerals become very concentrated, and they form the "white stuff" – the technical name is precipitate. The hardness minerals that cause the "white stuff" are not toxic.

the water should go thru the filter first then to everything else.

almost certainly a problem with the defrost timer - just replace complete. doesn't matter what position you set timer to when replaced