Question about Kenmore Elite 22.4 cu. ft. Bottom Freezer Refrigerator with Adjusta Cube Ice Maker

1 Answer

Bottom freezer works; Top fridge too warm

Model: Kenmore 596.72254200 (6yrs, 3mos old) - The problem seems most similar to kenore elite bottom freezer, top fridge stopped cooling, but that solution hasn't helped me. I noticed frost along evaporator at back of freezer, so I performed a manual defrost and it began to work, although I expect the problem to recur. After some online and hands on diagnosis, I believe its either the thermostat (P/N 12001937), the evaporator (P/N 12001919) or timer (P/N ???). Possible, though less likely is the heater (P/N 67001085).

  • I can't find the timer. Is it integral with the thermostat in this model? If not, where is the timer so I can determine if that's the problem?
  • How can I diagnose between whether the problem is the thermostat or the evaporator (in this model)?
  • If in the end, this requires me to replace the evaporator, any recos on how to connect to the Cu tubing?
Any help is appreciated. The back of the (internal) freezer compartment is now exposed, so it's easy to work on. I just hate to diagnose a problem by replacing parts.

Posted by on

  • j2reeke Sep 12, 2008

    Thanks for your response! I checked behind the cover over the light inside the fridge, and the only component of interest was an "adapt defrost" circuit board (P/N 12566102) protected by a plastic housing, but the board had no adjustments or rheostats, so I reinstalled everything. Since this Kenmore 596.72254200 has a factory installed ice maker, I looked closely at the ice maker, especially the "module and motor assembly" at the front of the ice maker - thanks for the tip. The assembly had 3 adjustment stems and a thermostat (which I assume is just for the icemaker.. which works BTW). 2 of the adjustment stems that face the front of the freezer controlled only the icemaker arm. Since the icemaker works, I made no adjustment. The 3rd adjustment stem was about halfway down on the side of the assembly toward the freezer compartment was CHEAP plastic (see the posted image). I rotated the the adjuster clockwise until it clicked - nothing happened. After 20 minutes, the adjustment stem remained in the same position. The fridge continued to run, and there was no indication of a defrosting evaporator. This appears to be the problem unless there's a flaw in my execution of your diagniostics.

    The Kenmore Repair Parts List indicates I cannot buy the "module and motor assembly" by itself, but must but the entire $110 (approx) icemaker - bummer.

    I appreciate any comments- they've been helpful so far.

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  • 76 Answers

The defrost timer is about 6 inches square and about 2 inches thick. It could be located under the box, in front or back. Some models of Whirlpool and Kenmore locate it behind the cover over the light inside the box. Westinghouse is often inside the cooler compartment, in the top. Some Gibson boxes put it in the back, about chest high. It's often hidden, but every self-defrosting refrigerator has one, except for a few models of Whirlpool and Kenmore with factory-installed ice makers — these models have an icemaker which also has the defrost timer built into it. The timer will have a stem that protrudes, or may be flush, which you can turn using a large blade screwdriver. Mark the position with a pencil, then turn it until it "clicks." This should start the defrost mode. The defrost mode will continue for 10 to 30 minutes, depending on the design. If after 20 minutes, the refrigerator has not restarted, or the timer stem has not moved, the timer is bad. When replacing the timer, you must use the correct one. There are about a dozen different configurations with even more types of connections. I suggest you order the part by make, model number, and serial number of your refrigerator to make sure you get the right one. Depending on your brand, and where you purchase the part, the price may be from $20 to $40 for this part.


You can test the termostat,just see if the fridge goes on and off..
If it goes off then the defrost heater sould go on.
The best way is to replace both the timer and thermostat...

if a evaporator gives any problems then the fridge wont cool down.

Hope this helps..

Regards.

Wouter.

Posted on Sep 11, 2008

  • Wouter Frylinck
    Wouter Frylinck Sep 12, 2008

    This is a bummer....

    Did you do some shopping around?

    Try going to some local appliances shops and ask them to order that part for you.

    I have a appliances repair shop my self and can order "loose" parts where a private client should order the hole unit.



    Hope you can fix this since i live in South Africa i cant really go and look for a part for you, but that is what i would have done.



    Regards.



    Wouter.

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