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I see Barry G has opted out .
I will try to assist you .
I too agree with barry it sounds as if you have a thermal sensor issue .
Here is a link to the part ..
this is the lower compartment sensor
this is the thermal sensor in the freshfood section located just above the crisper drawers on the back wall .
it just has two wire clip the old one and wire nut the wires onto the new one .
you are correct it has two .
And it normally has a small grill with opening in it about 2 inches long and the openings are about 3/4 of an inch .