Ice on back wall but not freezing food and rattle noise. Moved all food to other freezer

Is it "defrosting" the food or unable to keep it frozen? Probably unable to keep frozen. Many possible problems. 1. Defrost element bad and evaporator coil is iced over, or 2. Failed evaporator fan inside freezer, or 3. Low freon causing iced up evaporator coil....Do you see any ice build up on the back wall of freezer? Do you hear the freezer fan running or not? Take a look and get back to me.

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What is the model number?
The ice maker will only run if the freezer is at the correct temperature.
Do you see any ice buildup on the back wall of the freezer or behind it?

this fan needs to run when the compressor runs,check fan blade for being jammed by ice if you have this much ice on back wall as ice will stall motor,if no fan there will be no cool air to refrige compartment also the defrost drain tray will fill with water then freeze over which in turn floods the freezer floor and refrige compartments cause it cannot drain to the pan in the bottom

If the freezer temperature is freezing or below, as it should be, you should be getting ice. I would place a thermometer in the freezer to check the temperature. It would take a while for your frozen good to thaw out in a 33 degree freezer, but ice would not form in your icemaker at that temperature. Set your temperature lower after checking.

I had the exact same issue last night. I would press on the back panel long enough and the noise would go away only to return this morning at 4am. I finally got up took all of the bins and shelves out and found an very large accummulation of ice at the bottom (floor) and walls of the freezer. The ice accummulation was causing the rattling of the tubes in the wall of the freezer (I don't know what you call them), but they were frozen over on one side. I found this out once I took the back wall panel off of the inside of the freezer. I also found the drain hole back there and it was frozen over solid, as well as my ice dispensing unit at the top of the freezer. This whole problem began when I turned on the ice maker 3 days ago. I used my hair dryer and hot water to clear all of the ice from both areas and now it is nice and quiet. Don't know if the acccummulation is due to some defrost switch gone haywire, but at least the rattling is gone and my freezer is back to square 1 for the time being and I saved myself a visit from the appliance guy in the meantime. Took me a total of 1 1/2 hours to do it all.

You have to unclogh the drain hole inside the freezer at the bottom of the back wall by pouring hot water into it until ice melts and keep pouring to make sure water goes through .Repeat this every 3 o 4 months to keep it clear.

automatic defrost its not coming on check the heather or hi limit

Ice on the back wall indicates a problem with the defrost cycle. The ice builds up and starts to choke off the air flow, so your symptoms would indicate that may be happening.

Defrost problems are usually any of the three components, the heater element, the defrost termination temp switch, or the defrost timer.

The flow tubes are blocked.You will need to defrost the unit,unplug and pull off as much ice as possible.You can put pans of hot water in the freezer.

Ice cream requires a significantly lower freezing point than other foods. Keep it near the blowers or coils in most freezers and you'll be OK. Turn up the freezer a bit, and if it is all the way then move it away from the wall a bit more hope this helps!