A motor in the Ref. started to make a groan like noise.

Disconnect the defrost element and check with a multimeter for continuity. If there is no continuity, the element has failed. If the element is good, check the connections.

There is usually a Defrost Timer, but this uses a Defrost Sensor. Put 'defrost' into the Parts Search.

Heater
https://www.searspartsdirect.com/product/2i5x3d492k-0046-795/id-mee62105201

Sensor
https://www.searspartsdirect.com/product/1ff3ug3vf2-0046-795/id-acm73919201

https://www.searspartsdirect.com/model/2eozk34nvj-000583/kenmore-elite-79572053110-bottom-mount-refrigerator-parts

Timer normally
https://www.google.com/search?q=Kenmore+Elite+refrigerator+795.72053.110+defrost+timer

For Control Board replacement, I always advise getting a service call due to cost and warranty.

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Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

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Refrigeratoror Freezer not Cooling or Getting Cold
heatman101

We have a kenmore elite refrigerator modle number- 795 7756,7757 and it has been making a humming noise very constant now after two weeks, what could it be?

may be compressor clamp is loose in back side check it

Look for a lever to select cube size right on the icemaker.




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problem may be the main pcb or evaporator fan motor. this unit has several problems. if the model# starts with a 795 it was made by LG. the er ff code is caused most of the time from frost building up around fan motor. this can also be caused by freezer liner sagging at the top of freezer causing frost build up, sears has a service flash for this that is covered by the manufacture. service flash sf46-512. iwould call sears and find out if your model is on this service flash.

no sealer and its just as simple as you suggest

The most likely cause is a bad evaperator fan motor. It is mounted in the freezer section. It blows the air up to the ref section. Open the freezer door and listen to see if you hear any fan noise.

The evap fan motor most likely is running loud due to a ice build up around the fan and the fan blade is hitting it and making a loud , irriting noise. Shut the ref off. If you are mechanical, remove the draw and the back cover, clear out the ice. Also, the ice may have been caused because the sensors-- thermistors--- are not located properly. look at the ceiling of the freezer and you see a small holder piece. the part is located there. tahke the cover off and take the thermistor that may be buried in the ceiling and pull it down and locate it in the holder, reinstall the holder. Not also, there is another one in the ref section to do the same thing

1. remove everything from freezer. 2. unplug freezer. 3. remove screws from back of freezer wall. 4.remove evaporator fan. (you will see it at the top of the freezer wall) 5.install new one.