Question about Refrigerators
Kitchen aid side by side ksrb22fhblo1 lots of cold in
the freezer compartment
Hi and welcome to Fixya. When a food section of a refridgerator warms up it is a sign that the unit is not defrosting or there is an air flow problem.
This can be caused by the following components:
1. The defrost timer
2. Defrost bi-metal 60 Deg thermostat
3. Heating element
4. Evaporator fan failure in the freezer compartment
Sometimes the defrost timer will just stop advancing for some reason and ice builds up in the evaporator coils that restircts airflow from the evaporator fan so the food section warms up.
The most likely failure is the defrost timer.
You can see if your uint will cool properly after a good defrosting by doing this:
1. Unplug the unit and unload the freezer section
2. Place a fan blowing into the freezer for about 2 hours. (it will make a water mess so be prepaired)
3. Plug in / restart the unit and monitor the temperature for the next 48 hours (it should be normal or near normal) After 48 hours the food section temp will start to raise again due to ice build up.
4. If the temps return to normal then the unit is not defrosting properly and will need repaired.
You can find replacement parts here:
From the model number you gave the defrost timer is Item 6 of the control diagram
It can also be found here:
I did not of course diagnose the unit in your home. The part above is the most common failure. Given the cost of the defrost timer I would make SURE that it was defective before ordering.
In order to perform a continuity check of the rest of the defrost system components the bi-metal 60 Deg F thermostat must be above 60 Deg (or jumpered) to read the whole circuit. Jumpering the 60 Deg thermostat will not verify it is working correctly.
Hopefully this gives you a bit more understanding of why your unit is warming up in the food section.
Posted on Feb 04, 2010
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Posted on Jan 02, 2017
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