My Kenmore Elite refrigerator doesn't cool enough, but the freezer feels ok. Here is the story: A couple of years ago I noticed that ice was accumulating at the bottom of the freezer, in a small bay bellow the resistance, under which there is a small hole so that water can exit the freezer. I called a repair person from Sears, and all he did was apply a blower to the area to melt the ice. A couple of weeks later, the same problem occurred again and I noticed that the refrigerator felt warmer than usual, but the freezer was cold and some ice was even building up around the food (refrigerator and freezer are always set at the recommended temperatures). At this point I called an independent repair person, and he simply used a blower (just like the person from Sears) to melt the ice at the bottom of the freezer and the one accumulated around the resistance. He tested the resistance, and he said it was working fine. He also changed a part called "bi-metal", just in case. Anyway, after these two guys did their job with the unit, the refrigerator felt cooler for 2 or 3 weeks, but after that the problem persisted. Can you help me?

Yesterday I did a continuity check on the defrost heater and it was good. Also, I made a
continuity test on the bi-metal terminals, and it was good, too. Is there anything else I should check? Is the control damaged?

As additional info, I do notice that little cool air is felt entering the refrigerator from the freezer.

Thanks for any additional help you can give me.

Yesterday I did a continuity check on the defrost heater and it was good. Also, I made a continuity test on the bi-metal terminals, and it was good, too. Is there anything else I should check? Is the control damaged?

As additional info, I do notice that little cool air is felt entering the refrigerator from the freezer.

Thanks for any additional help you can give me.

I continued some troubleshooting in my refrigerator and found that the vents from a piece called diffuser, which has small vents where the cool air from the freezer enters the refrigerator side, were closed. This is odd, since the refrigerator was clearly not cool enough and I would expect them to be open so that the cool air could enter the refrigerator. I simply opened them manually and now I can feel the cool air entering the refrigerator. Could this diffuser be a part of the problem? I continued some troubleshooting in my refrigerator and found that the vents from a piece called diffuser, which has small vents where the cool air from the freezer enters the refrigerator side, were closed. This is odd, since the refrigerator was clearly not cool enough and I would expect them to be open so that the cool air could enter the refrigerator. I simply opened them manually and now I can feel the cool air entering the refrigerator. Could this diffuser be a part of the problem?