Brand new upright the back wall of freezer has a

I couldn't find any info on your freezer but there are 2 main ways units defrost. The first is manual defrost where you have to unplug the unit to defrost it yourself. These unit are typically chest freezers and upright freezers that have no fan and the refrigerant runs through the shelves. You can tell because frost will mainly build up on the shelves themselves. The second is self defrost. These units will have a fan in the freezer and a evaporator coil behind a wall inside the freezer. This wall is usually inside the freezer on the back wall. These units have a heater that is activated by a timer and comes on every 8 hours or so and will heat the coil for 20 to 30 minutes. This removes all the frost build up on the coil and you should never have to do anything. I hope this helps.

is the top of the freezer full where it can breathe remove something to help it breathe

Since you say the compressor is running, you should check the evaporator coil inside the cabinet. Remove the back wall screws, and the back wall, to expose the evaporator. If its fully encased in frost, like a square block of snow, you have a defrost problem, heater, t- stat or defrost control. If frost only at the top, your fan is not running. If its bare of frost, all you see is the aluminum coil, you have a sealed system leak of refrigeratnt

check the freezer back wall @ bottom if frosted up 1-bad heater (a-glass tube heater or cow rod. 2-bad times 3-bad defrost senor 4- bad fan motor

Check temp. in freezer shoud be 0 to -5 Deg. Check condensor if dirty clean some units had a recall on diers cap.tube to far in dier also check for ice on back wall if icedup check defrost heater and defrost timer check evap. fan make sure it's turning.

2 months old should still be under warenty.

Check the freezer fan by opening the freezer door and pressing the door switch and listing for the freezer fan sound. If no sound then the fan motor could be bad.

Look at the back wall too see if you have frost build up. If you do then you have a defrost problem.

If thees are not your problem you could have a seal system problem. (( freon leak ))

Check rear wall of freezer by feel for frost. Heavy, even frost indicates likely problem in the defrost system. Unplug unit. Defrost heater (in freezer behind rear wall panel), defrost thermostat (same area-must be checked at freezer temperature) or Defrost timer-located lower back outside of unit. Near compressor. Do continuity test on heater and defrost thermostat and if they show continuity (good), replace defrost timer. If not, replace the one that tests bad.

Defrost coils fully. Reassemble.

Please let me know if I have helped with comments and rating.

Refrigerator will work about 7-10 days after being defrosted until thick frost builds up again cutting off air flow to both compartments

I have a similar freezer under the Kenmore brand and experienced the same problem. Try raising the temp setting to +10 degrees. Unit should then start up again.

Frost free does not mean no frost ever anywhere. It just means that there is a mechanism to defrost the evaporator on a regular basis. If there is a spot where frost is forming in the box it may just mean that a little bit of moisture that is not collected on the coil may be finding another cold spot to stick. The area where the fan blows into the cabinet is bound to be the coldest spot in the freezer therefore an ideal place to collect frost. Check the level of the unit and your door gasket to be sure the door is closing tight and true.

defrost drain may be plugged.shut freezer off,melt ice with blowdryer,and unplug drain.drain probably located behind inner back wall beneath coils.