The door frame, behind the freezer door is always very warm. I suspect that there is a heater to keep thise area from water condensation. The last week or so I noticed that this is always on (very warm). I could not tell what the heater part is from the diagrams online, so I can't even say the xxx heater is always on, or look for it in the forum. Any suggestions would be of great value at this time.

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Thanks to kooler & denman for your help on this. The problem was both dirty condenser coils under the unit and a bad condenser fan. The coils were very dirty, but the main problem was a stopped condenser fan. The fan was in good shape, but a mouse had sacrificed his life trying to stop that fan, and he succeded until today. After I cleaned out the dead mouse and a ton of dust the fridge is working just fine. There is no more excessive heat around the freezer door.

The method I used to clean the coils was: I first vacuumed as much as I could, then I put the vacuum hose near the coils and used a tooth brush to free the dust from the coils. Without using the vacuum while brushing, dust was all over me. Have a great day!

Often this is dirty condenser coils under the unitand/or a bad condenser fan.

http://www.applianceaid.com/refrigerator.html
See Item 18.

Item 4 may also be useful.
Cleaning coils is a pain.
The way I do mine is to remove the rear cover and the kick plate.
Then roll the unit to an open door.
Then blow it out with a compressor, most of the dust ends up outside.
I have been told a leaf blower also works well.
You may not be able to do this depending on the kitchen setup.