Question about KitchenAid Refrigerators

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The temp...of the freezer is up and of the refrigerator and not going down ....door is closes why?

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The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.

If you need help finding your model number see here> http://www.appliancepartspros.com/modelnumber_locator.aspx

To locate your timer, motherboard, control or adaptive defrost control , enter your model number and search for the part or post back on Fixya.
http://www.searspartsdirect.com/partsdirect/index.action?psid=26129238&sid=PSx20071217x00001a

Posted on Oct 05, 2009

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What if the code doesn't work for the refridgerator once we install the board? It justs beeps which means incorrect code.


Please pay careful attention to step 5
1. Press and HOLD down the alarm keypad
2. Press and hold the Freezer Temp DOWN Keypad ( - )
3. Release the Door Alarm Keypad and wait 3 Seconds
4. The control will display PE to initate the program mode
5. Entry is confirmed by pressung the Freezed temp Down Keypad (-) once more.

6. The control will display the CURRENT program code. This value should be validated with the Program CODE printed on the unit serial plate.
NOTE: If the program CODE is correct, The programming Mode is exited by closing the Refrigerator door(s).
7. Press the Refrigerator Temp UP Keypad (+) or the Refrigerator Down Keypad (-) to change the digit value with each key press.
8. The decimal point indicates the selected digit. Press the Freezer Temp UP keypad (+) to select the next digit
9. Once the desired program code is displayed, press and hold the Freezer DOWN (-) keypad until the progam CODE begins flashing indicating it has been saved.
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Press and Hold Door Alarm Keypad
Press and Hold temp down keypad
Relaease door alarm Keypad and wait 3 seconds.
The control will display PE to indicate Programming mode.
Entry to programming mode confirmed by pressing FREEZER temp down keypad once more
The control will display the Current unit Programming Control code This code must be validated by comparing it to the Programming code stamped on the unit data plate (Model number plate)

If the programming code is correct all you have to do is close the refrigerator doors

To change the CODE press the REFRIGERATOR up or down keypad to change the digits.
To move between digits press the FREEZER up or down button. Decimal point indicates selection

Once the desired code is entered PRESS and HOLD the freezer temp down button until the CODE entered starts flashing.

Close the refrigerator doors or wait 4 minutes without Kaypad input for programming mode to exit.

That should be what you needed.

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