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Hi. I'm Smitty. I am a professional appliance repair consultant here to help you diagnose, and repair, your appliance.
It is called a yoder loop. What it does is help keep moisture out of the refrigerator.
If it is hot to the touch it usually indicates a blockage in the system or a low refrigerant condition.
What you need to do is contact a service company to have a look at it. This is not a user serviceable item. It requires gauges, a vacuum pump, and refrigerant recovery tools.
NOTE: It is illegal to work with refrigerants without an EPA certificate. Dischargeing refrigerant into the atmosphere degrades the earths ozone layer and is subject of up to a 5000.00 fine and or imprisonment in the county jail of up to 6 months.
Sorry for the bad news. I wish it could be better.
Thank you for your reply, one more question can this problem result in a short in the system or possibly cause a fire from the heat? Silly question sorry, just concerned as the door to my dishwasher started smoking a few months ago I am kind of freaked out thanks