Freezer is completely covered with white ice

Check your defrost timer. It may be bad.

Hi Gary,

If your evaporator is not completely frosting over (top to bottom) this normally means the unit doesn't have a proper charge or the compressor can't pump all the freon as it needs to. I would check the charge, this should read "0", if less not enough, if higher than the compressor is failing. I hope this helps.

I’m happy to help further over the phone at https://www.6ya.com/expert/gere_bf68e6055dd61249

If the freezer temps are normal and the refrigerator is warmer than normal, the the air flow from freezer to refrigerator is being hampered either by ice on the evaporator or the freezer is stuff in such a way that normal airflow between freezer and fridge is hampered. If the auto defrost is not working properly you will have warmer freezer temps and a relatively warm refridge. Check the defrost timer and defrost heater element.

Theres the problem an iced up freezer, the cold for the food compartment comes via a fan in the freezer, no flow, no cold, firstly defrost it completely, check fans are working, if they are ok then it's probably your defrost hester element.

I would guess you have just caused a build up of ice to block the air way, which normally takes cold air into the fridge. manually defrost (unplug and wait until the ice goes away) then restart and it should be fine

did you check freezer fan behind the freezer? If not working check the wiring for it. If broken fan replace it. Find no leak in door gasket. Temp setting must be at least 5 degree.Thanks.

This can be caused by lots of faults first inspect the evaporator in the back of the freezer for ice build up if this is the case the defrost system has a fault, if not the unit that opens between the wall of the freezer and the fridge may be faulty check for the grills opening and closing

check to see if if the back wall of the freezer is full of ice if so this is an automatic defrost problem
timer ,heater or limit switch

if the freezer is getting cold the problem is due to the cold air from the freezer not getting into the refrigerator. There are several things that can cause this problem. The coils in the freezer icing up and not defrosting properly is one of the things that can cause the refrigerator not to get cold enough. Another problem is the fan that blows the cold air from the freezer compartment into the refrigerator, not working. When the compressor is running open the refrigerator's door and push the switch that makes the light go out. You should hear the fan blowing the cold air from the freezer into the refrigerator, when this switch is pushed in. If the fan is working then you will need to find what is blocking the air flow. Iced up coils are a common problem. The icing problem can be due to a defective defrost timer or something defective in the defrost circuit. Click here for more information. Check for these problems and let me know what you have found.
REFRIGERATOR TROUBLESHOOTING
#1 Refrigerator side getting warm Freezer still cold
Evaporator fan motor not running.
Defective defrost timer. See Defrost Diagnosis Procedure
Defrost heater defective. See Defrost Diagnosis Procedure
Defrost thermostat defective. See Defrost Diagnosis Procedure
Airflow blocked from freezer compartment.
Freezer control turned to "coldest" setting blocking air flow to refrigerator side. On most refrigerator/freezers, the freezer control closes a baffle when turned to coldest setting, and this blocks off the air flow to the fresh food compartment.
Fan blade broken.
Defective door switch on older models.
Light staying on with door closed.
2 Refrigerator & freezer compartments both are getting warm
Make sure refrigerator is plugged in and has power.
Condenser fan motor on bottom under refrigerator not running.
Condenser coil clogged.
Defective defrost timer. See Defrost Diagnosis Procedure
Defective defrost heater. See Defrost Diagnosis Procedure
Defective defrost thermostat. See Defrost Diagnosis Procedure
Evaporator fan motor not running.
Cold control defective.
Compressor overload defective.
Compressor relay defective.
Light staying on with door closed.
Compressor defective.
Low on refrigerant. #3 Freezer compartment getting hot.
Defrost timer stuck in defrost cycle.(replace)
Defrost thermostat stuck.(replace)
Ice maker stuck in harvest cycle
Light staying on with door closed. 4 Ice maker not making ice
Defective inlet water valve.
Freezer temperature not cold enough. (see problem # 2 & 3 above)
Defective thermostat in ice maker.
Defective drive motor.
Water inlet tube clogged with ice.
Defective module in newer style icemaker. 5 Refrigerator sweating around door edges
Door gaskets leaking air.
Defective case heaters.
Energy saver switch not set to reduce exterior moisture
also if require more help click the link http://www.applianceaid.com/refrigerator.html please do rate the solution .thanks in advance.thank you for using fixya.

Remove back cover in freezer to completely thaw out. Check continuity on defrost heater replace if needed, also replace defrost thermostat, that is probably the problem.