My Amana BX22S5E bottom freezer/ upper refrig is freezing in the freezer section but slightly cold in the upper refrigerator section. I can see heavy frost on the back wall of the freezer and it sounds like the fan that pulls cold air up to the refrig section is working. What & how can I troubleshoot to determine the cause?
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Re: Amana bottom freezer/ refrigerator
Geezer, sounds like a defrost issue. I usually find the bi-metal to be the culprit on this model. Check out the pic. You will have to remove the back panel in the freezer and defrost the evaporator. Remove the ice maker if there is one. The back cover has 4 quarter inch screws. remove those. The air vent has 2 plastic clips one each side and one on the bottom, push in and pull the grill off. The thermistor cover has a slot for a flat blade screw driver,push in and pull the cover off. The thermistor will now slide behind the back panel. Check the bi-metal for buldging. As long as the evaporator fan is working, it's probably a defrost problem.
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either the evaporator fan in the damper vent door isnt running to push cold air from the freezer up into the refrige compartment or the damper vent door between the freezer and refrige section is frozen shut and cannot open to allow cold air flow,you need to access the evaporartor coil in the freezer rear wall and check both the fan and door movement
the damper door vent is not opening fully if at all between the refrige and freezer compartments,it can freeze up from condensation or if controlled by a motor the motor can be bad its behind a plastic grille
Do not know how to find a repair in your area, but here is what is wrong:
The cooling coils, located behind the back wall of the freezer section, have frosted up, preventing the normal flow of air. Now, some of the cold air in the freezer is sinking and flowing into the bottom of the fresh foods section through the air vent by the bottom bin. To fix this, disconnect power to the refrigerator and unload the freezer side. Remove the panel at the back of the freezer section and melt all the frost and ice. Replace the heater at the bottom of the cooling coils, which would normally take care of the frost build up. Reassemble and restore power.
Since your freezer control is the main thermostat , and your refrig control is only a damper , lower your freezer setting and turn the refrig control mid way . This will make the refrig run less , and keep the air flow moving , throughout the complete unit . When the airflow stops , by turning down the refrig control ( closing the damper ) , all the cold air will settle in the refrig section , thereby freezing everything in the lower section .
Since the water line runs thru the freezer door , too cold in the freezer section , will cause the water in the line to freeze . I would also suggest installing a dispensor heater ( pt. # WR49X10173 ) , which would hopefully avoid water line freeze , in the future . This part comes with installation instructions .
do you see alot of frost on the rear panel of the frzer if so it has failed to defrost and repair is req or do a manual defrost until a tech can get to you if no frost sorry sounds like you have a weak tired compressor or leak of freon and being 30 yrs old it is not cost effective to repair this item....