Hello David McCullough,
Welcome to FIXYA... your question is so well posed and nomenclature very complete.... Allowed me to took up your parts availability (they are available (see below))...!!
The first site I looked at also has an "instruction" video.
Keep in mind even if you buy a NEW SEAL... It will come folded up in a box... and you will have to manipulate it to assure full contact... So watch the video... see what they do... and when all is said-n-done... square, clean & true...
The important thing you need to know right now is your issue is a simple air Leak
... If you have not moved the refrigerator... and no children are using it (rather than the drawer trick) to get to the counter-top (cookie jar)...
You need only CHECK the condition of your seal.
If it is clean, supple without any cracks... It probably only needs to be "ENCOURAGED" to CONTINUE it's faithful service... It has a magnetic edge that aides it to seal (weak... but there)
Be sure to check the BOTTOM of the seal first... if there is any food
down there it will keep even the WELL-ALIGNED door from sealing... (or pizza box... (etc.)).
Once you are sure the seal is worth keeping: clean it with only a DAMP cloth and as much soap as you can lather on your hand from BAR SOAP... If it has kitchen grease on it use a pinch of baking dry soda and a soft toothbrush...
Also check the gasket actually touches the METAL (top) part of the refrigerator housing... a small $6 part can allow the door to drop enough to create this issue...
Finally if everything looks fine... do the "dollar-bill" test.
(brown bag paper is just as good & a lot more sanitary)...
Pull a piece of paper... the dimensions of a dollar bill by opening the door... and closing it on the "dollar"... going fully around the entire door you should feel equal pressure all around...
Too tight means the door needs to be adjusted (refer to your owners manual"
Too loose... what you are MOST LIKELY
going to find on the gasket above you "egg baskets" ...
your door has dropped...
You either need the door closer kit ($6) or to simply raise the door so the MAGNET (inside the gasket) is in contact with the METAL refrigerator case.
If it is in alignment... but loose SIMPLY CUT A SODA STRAW
(or a little wadded up SOFT
plastic wrap) for the length of the looseness... pick up the INSIDE EDGE OF THE GASKET
... and train the gasket to get closer...
Remove the straw when the NATURAL MAGNETIC attraction works again (a few weeks).
Hope this helps!
Other sources (besides SEARS ... same parts... more $$$$)
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