Question about Jenn-Air JCD2389G Side by Side Refrigerator
Manually defrosting is not a solution you will need to fix this - you have a faulty control board, you might have reset things temporarily but problem WILL return eventually and you will spoil your food. Common causes are control board, your defrost system is not working, most of the time changing the control board fixes it - also have your defrost components checked as well for proper operation.
Posted on Sep 26, 2009
Although it isn't defrosting the timer(or defrost control) could still be putting it in the defrost mode where everything cut off. Your heater may not be working.
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.
Posted on Sep 25, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
the back wall or floor of the freezer section for frost. Check the freezer (
evaporator) fan to see if it is running. Check the condenser coils under the
unit for blockage from dust. Check the condenser fan (under the unit) to see if
it is running.
If you have frost in the freezer there is a problem with the defrost system and the freezer will start to warm eventually as well as the fresh food section. If that is the problem you can check the defrost terminator, defrost heater/s, and the defrost timer or adaptive defrost control If used on your unit or the main control board if so equipped. These things usually require dismantling the freezer and other areas of the refrigerator to be checked.
can be many factors for the no cooling factor: the condenser coils could be
blocked with dust, the condenser fan could be bad or stuck, the freezer fan
could be stuck or bed, the freezer coils could be blocked with frost because
the self-defrost system is not working or the compressor is not running because
of a bad relay etc.
check this link to get a detailed idea about your issue:-
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