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Pam, I happen to know you are married to an absolute ACE.

What is the fridge doing or not doing?
Have you cleaned the coils under the fridge? That can kill the cooling
Does it have a hard time starting? There is a start capacitor on the compressor that can go bad
Does it run continuously but not cool?
Have you checked to see if the internal coils located behind a panel in the lower freezer are iced over? If that internal coil ices over, air will not flow and nothing gets cold. I know it sounds odd, but it’s a think with the Amana.

Richard, You are correct in being married to a ACE!  My issue is my ACE had a total shoulder replacement 3 weeks ago!  6 Months before he is good! 

He worked on it during the winter, twice!  I know that he cleaned the coils under fridge (Made a mess) I think twice! 
The internal coils in the lower panel is iced over again.
It starts up just fine and when not freezing up it works great.  But that is only about a week before it is froze up again. 
So think it's time for another one? 

Pam

There is an internal fan that pulls air over the internal coils and pushes it into the fridge, without that fan the internal coils freeze up. I posted the link to the fan motor I used, it was not a perfect fit but it worked. If Richard says your other half is an ace I am sure he can make it work. 

Here is the link for the internal fan that I made work:
https://a.co/d/9RjxWHC

This should be easier than trying to replace a fridge, at least for now. Maybe once the other half is healed then the fridge can be replaced. 

Hope this helps.