Gss23qgta cc back wall of freezer heavly frosted/frozen
sounds like you have a defrost problem,this is common,most likely you have a bad thermistor located on top of the evaporator coil,it's part wr55x10025,it looks like a white bullet,if you look at it and if it has a black ring around it where the wires connect to the bullet looking part these sensors or thermistor had problems and should be changed out,or you have a bad defrost heater part WR51X10101.you can check the heater for continuity with a meter or just look at the element in the glass of the heater,if it's all black looking replace it and the thermistor and you should be fine as long as you don't have a mother board problem but the heaters and thermistors do fail,so unplug the fridge or shut the breaker off so you don't have to pull out the fridge,remove the food from the freezer,get a hair dryer and melt off any ice on the back wall that's in your way,then remove the back inside wall of the freezer,get a towel and stick it under the coil and on the freezer floor,melt out all the ice with the hair dryer,if you don't use towels inside and you melt all the ice the pan will overflow onto the floor so you want to catch the water in towels,after you melt out the ice remove the heater two screws and look at it and check it with meter,if it looks black inside the glass replace it even if it reads good with meter,then cut out the thermistor on the top of coil,the new thermistor is just the bullet and two wires coming off of it,cut the old one out and leave enough room so you can connect the new one you have to buy some plastic nuts to connect each wire with,when you crimp the nuts or you can use regular wire nuts,but i use silicone sealer and cover the opening where the wires go into the nut or cap whatever you want to call them just so no water gets in there,the best way is say you cut 6 inches off of the wires on the old part try to leave the new part almost the same length or a little longer but it doesn't matter if it's not exact,this is used instead of thermostat because you have a mother board in this machine,there is also a t-stat on top of coil but not used like older machines so change out the thermistor and heater and you should be fine,put everything back the same way.one more thing that should be done at least once a year is pull out the fridge from the wall,remove the bottom back panel and clean out the condenser coil and back wall cover,i use a shop vac i vac off the coil and then set the vac up to blow and blow the coil out,this is the best way to clean this coil,it's round and hard to clean,.if you still have an issue the only thing left is the mother board but this part costs some bucks change out the parts i told you and most of the time it's not the board.hope this helps you out.one more thing make sure the evap fan is running and that ain't bad,just open the freezer door,you should hear the fan blowing in the freezer,that's the easiest way to check the fan motor.
