Model etomsrx my freezer starts to plug with ice on top- i know my defrost element works. i replaced defrost timer already, i get frost & ice in my fan tower in my freezer which blocks the air vent for the refrigerator temp. what can i do to prevent this?

SOURCE: Refrigerator Defrost Troubleshooting

you cannot do this
just check the defrost heater and the bi metal, if they check good then the adaptive defrost control is bad

SOURCE: My smeg refrigerator (which is

Thanks much! Will do that right away.

SOURCE: defrost timer location on Kenmore model 106.56542400

carry control board part#2149705

SOURCE: frost forms in freezer, blocking vents so temp in both freezer and fridge is warmer than normal

You have an issue with the defrost system, either the timer, thermostat or heating element. Probably the defrost timer refer to the manual to find it. If you don't have the manual check the makers web site for a parts breakdown. You should be able to put it into defrost manually by turning the knob and see if that helps. You may need to do this sevral times as it only stays in defrost for a little over twnety minutes and run cycle for 6,8 or ten hours. If the ice build up is heavy then twenty minutes may not do the trick thus the need for repated defrost cycles. If it does the trick replace the timer. If not check the thermostat and heater element.

SOURCE: Where is the defrost timer located on GE

This model does not have a defrost timer. It has a motherboard. You must jump out the plug to the main board to test the defrost circuit. In order to do this take the cover off of the main board, find the three wire connector on the base of the main board, connecter is normally blue in color. On the board itself it will identify termials as line, defrost, and compressor. To test you must create a jumper wire.Install the jumper in the plug terminals identified as line and defrost.This will turn the defrost heater on. If the heater does not come on, look for a defective heater or a defrost thermostat(mounted on the top of the evaporator). If the heater does come on replace the thermister(located on top of evap, white in color and has two white wires part#WR55x10025)