amana fridge problem

amana fridge model BRD18V2E maybe 6 years old.
bottom drawer freezer, with ice maker.
the ice maker stopped making ice. (the supply tube is frozen) more than that though, the back inside wall of the freezer section is covered in frost.
the freezer is keeping things barely frozen.(things are between frozen rock hard and mushy) the fridge compartment is adequately cold, but doesn't feel quite like it did before.
i pulled it from the wall, unplugged it, removed the back cardboard cover to get to louvers, etc. vacuumed everything, and there wasn't anything to block airflow. the fan that is visible on the bottom back of the unit is evidently working, because as i unplugged the unit, i saw the fan stop spinning through the louvers.
no real evidence of freon/oil anywhere that i could see. no odors of anything burnt.
any ideas on what to look for?
Thanks. perry
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The drain is probably frozen. When the defroster runs, the water drains out through a tube in the bottom rear and into an evaporation pan. It's common for that tube to get partially blocked with debris, then it freezes up and you get your situation.
Put all your food in ice chests. Let the fridge sit unplugged for a few days with the doors open. Mop up all the water that drains out. *Gently* clean out the drain tubes (there's probably one on the refrigerator side, too). Run a dilute bleach solution through to kill mildew. Since it's empty, give it a good scrub inside and out. Plug it back in to see if it's working. If so, load it up. If not, call the repair man.
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Steve Bell
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Defrost system problem of some kind. Timer, or defrost heater, or bimetal.
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Christopher A. Young
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what's a bimetal?
thanks perry
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AKA termination thermostat.
Either that, or it's a metal who bonds to other metals, or to nonmetals.
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On Wed, 18 Jun 2008 19:50:58 -0500, "perrylep"

Check the door gasket and make sure the door is closing properly, with a "good seal". Check for damaged gasket. You can clean with dilute of bleach and water.
Perhaps humidity is entering and freezing.
2 cents :)
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no, door gasket is sealing fine, nothing impeding the closing... perry
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