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What is the normal temperature fluctuation in a Kenmore refrigerator model 253.54739300?

I recently had to replace the compressor starter in this refrigerator. To prevent possible future food loss, I then installed a remote thermometer/alarm. It also records maximum high and low temperatures for both the freezer and fresh food compartments. The temperature range seems excessive to me. I don't know what is "normal." The fresh food compartment ranges from 29 to 50 degrees. The freezer ranges from -9 to +14 degrees. I don't know how the defrost system works in this unit. Is it on a timer? If so, what is the time period for the defrost cycle? How much time elapses between defrost cycles? Perhaps you could explain how the defrost system normally works. What temperature variation should I see during the defrost cycle? This might help me understand what is going on.

If this range seems excessive, what might cause that? Could low refrigerant cause this variation?

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2 Answers from these members:
by LYLE W. Earned 137,467 community points in Kenmore
October 8th, 2008
0 votes
Jerry Briggs
by Jerry Briggs Earned 8 community points in Kenmore
November 11th, 2014
0 votes
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