I've defrosted it once already, but that was before I cleaned the coils. I have cleaned the coils, but it's still freezing causing the air flow to my fridge to be blocked which makes my fridge warm up. Any ideas what's causing this?
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Check for ice / frosting inside the freezer .... If present you probably have a defrost problem.... This causes the freezer coil to ice up and block the air flow ... the causes could be a bad defrost heater , defrost timer, defrost sensors, or control board. Also make sure that the condenser coil is clean. remove ALL dust with a vacuum and a coil brush .the coil is located either on the bottom or on the back side of the unit... You didn't give the Make and model #
the most common problem i find is either the defrost heater or termination thermostat,both found in the freezer and on the evaporator coil.it is very likely one of these since you replaced the timer already.
Amana refrig have 2 main problems . 1 is the defrost bimetal ( 1" cylinder at the top right on the freezer coils with 2 wires ) and the other is a refrigerant leak where the copper tubing joins the aluminum tubing at the freezer coils ( evaporator coils ) . If your freezer fan is not working and you have frost on the freezer coils then replace the bimetal as this also controls the defrost heater ( defrost thermostat ) . If you have no frost on the coils ( for both checks , you will have to remove the inside rear freezer panel , maybe 12 screws ) , then a refrigerant leak has happened and the best solution would be to replace the refrig .
It sounds like the evaporator fan is hitting ice that is built up on the evaporator coil. When it's making the noise, open the freezer door and see if it stops.
(Most models are wired so that the evaporator fan cuts off when the freezer door is open.)
Check the inside back, lower panel of the freezer for ice built up or frost on it. If there is, you have a defrost problem that is most likley a bad heater. It's located around the coil inside the freezer behind the panel you will be looking at. The defrost problem would explain the freezer not freezing ice cream.
Not sure of your model number and manufacturer, but in some freezer there is a seperate drain heater that should stay on for the complete defrost time. (the defrost heater will shut off when the evap coil reaches a certain temp, and the rest of the defrost time only the drain heater is energized.) That would be the very first place that I would start. Hope this helps
You have an automatic defrost problem. Here are the three components that can cause this defect in order of most common to least. #1 defrost timer or equivalent adaptive defrost control board, #2 defrost termination thermostat (should be replaced regardless since it has been frozen in ice several times) #3 defrost heating element(rarely fails but is possible). If you have a meter you can check the thermostat and element for continuity they should show an infinite reading if they are operational. the termination thermostat must be below 35 deg f to show a closed circuit.