Question about Kenmore 73502 / 73504 / 73509 Bottom Freezer Refrigerator
Problem like RickH, posted Dec. 2, 2006: Freezer cold, top section warm. The evaporator fan has run since I noticed the problem. I ran the service tests, and could not find codes which shouted "ERROR". When I ran the evaporator fan test, it said 0 and 13, which I interpret as the DC voltages. The damper opened and closed, according to the panel, and I could hear movement when I ran that test. The defrost test started as "OFF", then showed "CL" when I toggled the operation with the refrigerator temperature controls.
A friend suggested that the defroster was iced up, but I'm having trouble relating his description of his problem to what is going on with my fridge.
KentC, This was my post on a model like yours. Read thru this and let me know what you find. If the ice/frost buildup is fairly thick and only on the back freezer panel then you have a defrost problem. Most likely the defrost thermostat is bad. It would be hard to explain how to test this in writing but there is a tech sheet underneath the fridge behind the grill on the r/f. It is in plastic which is stuck to the fridge. This tech sheet will tell you how to put it into diagnostic mode. First take the back panel of the freezer off (may need to get frost off first). Should be four 1/4" screws in each corner of the panel to remove. Will need to remove racks, door (should just lift off), and ice maker first. Remove vent in center of freezer panel by pushing up little tab in the center of the vent and using a screw driver to pop it loose on each side of the vent. Then remove thermistor cover on right hand side of panel. Remove (by pushing thru) ice maker plug. Once the panel is off put the fridge into defrost by the instructions on the tech sheet. If it goes into defrost (heater will get hot) then the main control board is bad. If not shut the doors to reset, defrost evaporator with a hair dryer and remove the defrost thermostat. It is a little metal round piece with two wires coming out of it and just clips onto the evaporator. Cut the two wires coming out of the thermostat, strip them back and splice them together. Now put it into defrost again. If the heater comes on then you know the thermostat is bad. Diagnostics mode can also test all functions i.e. condensor motor, compressor, evaporator fan, and thermistors. With all of that said, if it isn't a thick frost buildup the evaporator fan motor may be bad which is the most common repair on this model. It sits just behind the vent in the center of the freezer panel. Let me know what you find.
Posted on Oct 20, 2007
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